2016 · Shift 0

63 questions · JEE Main

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JEE Main
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2016 · Shift 0

2016 · Shift 0

63 questions · JEE Main

Chemistry19 questions Mathematics18 questions Physics26 questions

Q1.Decomposition of $H_{2} O_{2}$ follows a first order reaction. In fifty minutes the concentration of $H_{2} O_{2}$ decreases from 0.5 to 0.125 M in one such decomposition. When the concentration of $H_{2} O_{2}$ reaches 0.05 M, the rate of formation of $O_{2}$ …
Chemistry · Chemical Kinetics and Nuclear Chemistry · MCQ
Q2.Galvanization is applying a coating of :
Chemistry · Electrochemistry · MCQ
Q3.18 g glucose ( $C_{6} H_{12} O_{6}$ ) is added to 178.2 g water. The vapor pressure of water (in torr) for this aqueous solution is :
Chemistry · Solutions · MCQ
Q4.The reaction of propene with $H O C l$ ( $C l_{2}$ + $H_{2} O$ ) proceeds through the intermediate:
Chemistry · Hydrocarbons · MCQ
Q5.At 300 K and 1 atm, 15 mL of a gaseous hydrocarbon requires 375 mL air containing 20% $O_{2}$ by volume for complete combustion. After combustion the gases occupy 345 mL. Assuming that the water formed is in liquid form and the volumes were…
Chemistry · Hydrocarbons · MCQ
Q6.The distillation technique most suited for separating glycerol from spent-lye in the soap industry is :
Chemistry · Basics of Organic Chemistry · MCQ
Q7.The reaction of zinc with dilute and concentrated nitric acid, respectively, produces :
Chemistry · D and F Block Elements · MCQ
Q8.The equilibrium constant at 298 K for a reaction A + B $⇋$ C + D is 100. If the initial concentration of all the four species were 1M each, then equilibrium concentration of D (in mol L–1) will be:
Chemistry · Chemical Equilibrium · MCQ
Q9.The heats of combustion of carbon and carbon monoxide are –393.5 and –283.5 kJ mol–1, respectively. The heat of formation (in kJ) of carbon monoxide per mole is :
Chemistry · Thermodynamics · MCQ
Q10.The product of the reaction given below is : Includes diagram
Chemistry · Alcohols Phenols and Ethers · MCQ
Q11. $2$ -chloro- $2$ -methylpentane on reaction with sodium methoxide in methanol yields: Includes diagram
Chemistry · Alcohols Phenols and Ethers · MCQ
Q12.The absolute configuration of is : Includes diagram
Chemistry · Basics of Organic Chemistry · MCQ
Q13.In the Hofmann bromamide degradation reaction, the number of moles of $N a O H$ and $B r_{2}$ used per mole of amine produced are:
Chemistry · Compounds Containing Nitrogen · MCQ
Q14.Thiol group is present in :
Chemistry · Biomolecules · MCQ
Q15.The pair having the same magnetic moment is : [At. No.: Cr = 24, Mn = 25, Fe = 26, Co = 27]
Chemistry · Coordination Compounds · MCQ
Q16.Which one of the following complexes shows optical isomerism? (en = ethylenediamine)
Chemistry · Coordination Compounds · MCQ
Q17.Which of the following compounds is metallic and ferromagnetic ?
Chemistry · D and F Block Elements · MCQ
Q18.A stream of electrons from a heated filament was passed between two charged plates kept at a potential difference V esu. If e and m are charge and mass of an electron, respectively, then the value of h / $λ$ (where $λ$ is…
Chemistry · Structure of Atom · MCQ
Q19.The species in which the $N$ atom is in a state of $s p$ hybridization is :
Chemistry · Chemical Bonding and Molecular Structure · MCQ
Q20.For $x \in R, f (x) = ∣ lo g 2 - sin x ∣$ and $g (x) = f (f (x)),$ then :
Mathematics · Limits Continuity and Differentiability · MCQ
Q21.Let $p = x \to 0^{+} lim (1 + tan^{2} x)^{\frac{1}{2 x}}$ then $l o g p$ is equal to :
Mathematics · Limits Continuity and Differentiability · MCQ
Q22.A value of $θ$ for which $\frac{2 + 3 i s i n θ}{1 - 2 i s i n θ}$ is purely imaginary, is :
Mathematics · Complex Numbers · MCQ
Q23.If the standard deviation of the numbers 2, 3, a and 11 is 3.5, then which of the following is true?
Mathematics · Statistics · MCQ
Q24.Let two fair six-faced dice $A$ and $B$ be thrown simultaneously. If $E_{1}$ is the event that die $A$ shows up four, $E_{2}$ is the event that die $B$ shows up two and $E_{3}$ is the event that the sum of numbers on both dice is odd, then…
Mathematics · Probability · MCQ
Q25.If a curve $y = f (x)$ passes through the point $(1, - 1)$ and satisfies the differential equation, $y (1 + x y) d x = x d y$ , then $f (- \frac{1}{2})$ is equal to :
Mathematics · Differential Equations · MCQ
Q26.The area (in sq. units) of the region ${(x, y) : y^{2} \geq 2 x an d x^{2} + y^{2} \leq 4 x, x \geq 0, y \geq 0}$ is :
Mathematics · Area Under the Curves · MCQ
Q27.The integral $\int \frac{2 x ^{12} + 5 x ^{9}}{( x ^{5} + x ^{3} + 1 ) ^{3}} d x$ is equal to :
Mathematics · Indefinite Integrals · MCQ
Q28.The system of linear equations $x + λ y - z = 0 λ x - y - z = 0 x + y - λ z = 0$ has a non-trivial solution for :
Mathematics · Matrices and Determinants · MCQ
Q29.If $A = [5 a 3 - b 2]$ and $A$ adj $A = A A^{T},$ then $5 a + b$ is equal to :
Mathematics · Matrices and Determinants · MCQ
Q30.A wire of length $2$ units is cut into two parts which are bent respectively to form a square of side $= x$ units and a circle of radius $= r$ units. If the sum of the areas of the square and the circle so formed is minimum, then:
Mathematics · Application of Derivatives · MCQ
Q31.The eccentricity of the hyperbola whose length of the latus rectum is equal to $8$ and the length of its conjugate axis is equal to half of the distance between its foci, is :
Mathematics · Hyperbola · MCQ
Q32.If one of the diameters of the circle, given by the equation, $x^{2} + y^{2} - 4 x + 6 y - 12 = 0,$ is a chord of a circle $S$ , whose centre is at $(- 3, 2)$ , then the radius of $S$ is :
Mathematics · Circle · MCQ
Q33.Two sides of a rhombus are along the lines, $x - y + 1 = 0$ and $7 x - y - 5 = 0$ . If its diagonals intersect at $(- 1, - 2)$ , then which one of the following is a vertex of this rhombus?
Mathematics · Straight Lines and Pair of Straight Lines · MCQ
Q34.If the $2^{n d}, 5^{t h} an d 9^{t h}$ terms of a non-constant A.P. are in G.P., then the common ratio of this G.P. is :
Mathematics · Sequences and Series · MCQ
Q35.If all the words (with or without meaning) having five letters,formed using the letters of the word SMALL and arranged as in a dictionary, then the position of the word SMALL is :
Mathematics · Permutations and Combinations · MCQ
Q36.The sum of all real values of $x$ satisfying the equation $(x^{2} - 5 x + 5)^{x^{2} + 4 x - 60} = 1$ is :
Mathematics · Quadratic Equation and Inequalities · MCQ
Q37.If $f (x) + 2 f (\frac{1}{x}) = 3 x, x e q 0$ , and $S = {x \in R : f (x) = f (- x)}$ ; then $S :$
Mathematics · Functions · MCQ
Q38.Identify the semiconductor devices whose characteristics are given below, in the order $(a), (b), (c), (d)$ : Includes diagram
Physics · Electronic Devices · MCQ
Q39.If $a, b, c, d$ are inputs to a gate and $x$ is its output, then, as per the following time graph, the gate is : Includes diagram
Physics · Electronic Devices · MCQ
Q40.Radiation of wavelength $λ,$ is incident on a photocell. The fastest emitted electron has speed $v .$ If the wavelength is changed to $\frac{3 λ}{4},$ the speed of the fastest emitted electron will be:
Physics · Dual Nature of Radiation · MCQ
Q41.An observer looks at a distant tree of height $10 m$ with a telescope of magnifying power of $20.$ To the observer the tree appears:
Physics · Geometrical Optics · MCQ
Q42.Arrange the following electromagnetic radiations per quantum in the order of increasing energy : A : Blue light B : Yellow light C : X-ray D : Radiowave.
Physics · Electromagnetic Waves · MCQ
Q43.An arc lamp requires a direct current of 10 A at 80 V to function. If it is connected to a 220 V (rms), 50 Hz AC supply, the series inductor needed for it to work is close to :
Physics · Alternating Current · MCQ
Q44.A particle of mass m is moving along the side of a square of side ‘a’, with a uniform speed v in the x-y plane as shown in the figure : Which of the following statements is false for the angular momentum $L$ about the… Includes diagram
Physics · Rotational Motion · Multiple correct
Q45.The box of a pin hole camera, of length $L,$ has a hole of radius a. It is assumed that when the hole is illuminated by a parallel beam of light of wavelength $λ$ the spread of the spot (obtained on the opposite wall of the camera)…
Physics · Wave Optics · MCQ
Q46.In an experiment for determination of refractive index of glass of a prism by $i - δ,$ plot it was found thata ray incident at angle $3 5^{\circ}$ , suffers a deviation of $4 0^{\circ}$ and that it emerges at angle $7 9^{\circ} .$ …
Physics · Geometrical Optics · MCQ
Q47.Two identical wires $A$ and $B,$ each of length $^{'} l^{'}$ , carry the same current $I$ . Wire $A$ is bent into a circle of radius $R$ and wire $B$ is bent to form a square of side $^{'} a^{'}$ . If $B_{A}$ and $B_{B}$ are the values of magnetic fields…
Physics · Magnetics · MCQ
Q48.A galvanometer having a coil resistance of $100 Ω$ gives a full scale deflection, when a currect of $1 m A$ is passed through it. The value of the resistance, which can convert this galvanometer into ammeter giving a full scale…
Physics · Current Electricity · MCQ
Q49.The temperature dependence of resistance of $C u$ and undoped $S i$ in the temperature range $300 - 400 K,$ is best described by :
Physics · Electronic Devices · MCQ
Q50.A combination of capacitors is set up as shown in the figure. The magnitude of the electric field, due to a point charge $Q$ (having a charge equal to the sum of the charges on the $4 μ F$ and $9 μ F$ capacitors), at a point distance $30 m$ … Includes diagram
Physics · Capacitor · MCQ
Q51.The region between two concentric spheres of radii $^{'} a^{'}$ and $^{'} b^{'},$ respectively (see figure), have volume charge density $ρ = \frac{A}{r},$ where $A$ is a constant and $r$ is the distance from the center. A such that the electric field… Includes diagram
Physics · Electrostatics · MCQ
Q52.A pipe open at both ends has a fundamental frequency $f$ in air. The pipe is dipped vertically in water so that half of it is in water. The fundamental frequency of the air column is now :
Physics · Waves · MCQ
Q53.A uniform string of length $20 m$ is suspended from a rigid support. A short wave pulse is introduced at its lowest end. It starts moving up the string. The time taken to reach the supports is : (take $g = 10 m s^{- 2}$ )
Physics · Waves · MCQ
Q54.A particle performs simple harmonic motion with amplitude $A .$ Its speed is trebled at the instant that it is at a distance $\frac{2 A}{3}$ from equilibrium position. The new amplitude of the motion is:
Physics · Simple Harmonic Motion · MCQ
Q55. $^{'} n^{'}$ moles of an ideal gas undergoes a process $A \to B$ as shown in the figure. The maximum temperature of the gas during the process will be : Includes diagram
Physics · Heat and Thermodynamics · MCQ
Q56.A roller is made by joining together two cones at their vertices $0$ . It is kept on two rails $A B$ and $C D$ , which are placed asymmetrically (see figure), with its axis perpendicular to $C D$ and its center $O$ at the center of line joining… Includes diagram
Physics · Rotational Motion · MCQ
Q57.An ideal gas undergoes a quasi static, reversible process in which its molar heat capacity $C$ remains constant. If during this process the relation of pressure $P$ and volume $V$ is given by $P V^{n} =$ constant, then $n$ is given by (Here…
Physics · Heat and Thermodynamics · MCQ
Q58.A pendulum clock loses $12 s$ a day if the temperature is $4 0^{\circ} C$ and gains $4 s$ a day if the temperature is $2 0^{\circ} C .$ The temperature at which the clock will show correct time, and the co-efficient of linear expansion $(α)$ …
Physics · Heat and Thermodynamics · MCQ
Q59.A point particle of mass $m,$ moves long the uniformly rough track $P QR$ as shown in the figure. The coefficient of friction, between the particle and the rough track equals $μ .$ The particle is released, from rest from the point $P$ … Includes diagram
Physics · Work Power and Energy · MCQ
Q60.A satellite is revolving in a circular orbit at a height $^{'} h^{'}$ from the earth's surface (radius of earth $R; h << R$ ). The minimum increase in its orbital velocity required, so that the satellite could escape from the earth's…
Physics · Gravitation · MCQ
Q61.A person trying to lose weight by burning fat lifts a mass of $10 k g$ upto a height of $1 m 1000$ times. Assume that the potential energy lost each time he lowers the mass is dissipated. How much fat will he use up considering the work done…
Physics · Work Power and Energy · MCQ
Q62.A screw gauge with a pitch of 0.5 mm and a circular scale with 50 divisions is used to measure the thickness of a thin sheet of Aluminium. Before starting the measurement, it is found that when the two jaws of the screw gauge are brought…
Physics · Units and Measurements · MCQ
Q63.A student measures the time period of 100 oscillations of a simple pendulum four times. The data set is 90 s, 91 s, 95 s and 92 s. If the minimum division in the measuring clock is 1 s, then the reported mean time should be :
Physics · Units and Measurements · MCQ

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2016 · Shift 0

63 questions · JEE Main

Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.

PYQ Library
JEE Main
Papers
2016 · Shift 0

2016 · Shift 0

63 questions · JEE Main

Chemistry19 questions Mathematics18 questions Physics26 questions

Q1.Decomposition of $H_{2} O_{2}$ follows a first order reaction. In fifty minutes the concentration of $H_{2} O_{2}$ decreases from 0.5 to 0.125 M in one such decomposition. When the concentration of $H_{2} O_{2}$ reaches 0.05 M, the rate of formation of $O_{2}$ …
Chemistry · Chemical Kinetics and Nuclear Chemistry · MCQ
Q2.Galvanization is applying a coating of :
Chemistry · Electrochemistry · MCQ
Q3.18 g glucose ( $C_{6} H_{12} O_{6}$ ) is added to 178.2 g water. The vapor pressure of water (in torr) for this aqueous solution is :
Chemistry · Solutions · MCQ
Q4.The reaction of propene with $H O C l$ ( $C l_{2}$ + $H_{2} O$ ) proceeds through the intermediate:
Chemistry · Hydrocarbons · MCQ
Q5.At 300 K and 1 atm, 15 mL of a gaseous hydrocarbon requires 375 mL air containing 20% $O_{2}$ by volume for complete combustion. After combustion the gases occupy 345 mL. Assuming that the water formed is in liquid form and the volumes were…
Chemistry · Hydrocarbons · MCQ
Q6.The distillation technique most suited for separating glycerol from spent-lye in the soap industry is :
Chemistry · Basics of Organic Chemistry · MCQ
Q7.The reaction of zinc with dilute and concentrated nitric acid, respectively, produces :
Chemistry · D and F Block Elements · MCQ
Q8.The equilibrium constant at 298 K for a reaction A + B $⇋$ C + D is 100. If the initial concentration of all the four species were 1M each, then equilibrium concentration of D (in mol L–1) will be:
Chemistry · Chemical Equilibrium · MCQ
Q9.The heats of combustion of carbon and carbon monoxide are –393.5 and –283.5 kJ mol–1, respectively. The heat of formation (in kJ) of carbon monoxide per mole is :
Chemistry · Thermodynamics · MCQ
Q10.The product of the reaction given below is : Includes diagram
Chemistry · Alcohols Phenols and Ethers · MCQ
Q11. $2$ -chloro- $2$ -methylpentane on reaction with sodium methoxide in methanol yields: Includes diagram
Chemistry · Alcohols Phenols and Ethers · MCQ
Q12.The absolute configuration of is : Includes diagram
Chemistry · Basics of Organic Chemistry · MCQ
Q13.In the Hofmann bromamide degradation reaction, the number of moles of $N a O H$ and $B r_{2}$ used per mole of amine produced are:
Chemistry · Compounds Containing Nitrogen · MCQ
Q14.Thiol group is present in :
Chemistry · Biomolecules · MCQ
Q15.The pair having the same magnetic moment is : [At. No.: Cr = 24, Mn = 25, Fe = 26, Co = 27]
Chemistry · Coordination Compounds · MCQ
Q16.Which one of the following complexes shows optical isomerism? (en = ethylenediamine)
Chemistry · Coordination Compounds · MCQ
Q17.Which of the following compounds is metallic and ferromagnetic ?
Chemistry · D and F Block Elements · MCQ
Q18.A stream of electrons from a heated filament was passed between two charged plates kept at a potential difference V esu. If e and m are charge and mass of an electron, respectively, then the value of h / $λ$ (where $λ$ is…
Chemistry · Structure of Atom · MCQ
Q19.The species in which the $N$ atom is in a state of $s p$ hybridization is :
Chemistry · Chemical Bonding and Molecular Structure · MCQ
Q20.For $x \in R, f (x) = ∣ lo g 2 - sin x ∣$ and $g (x) = f (f (x)),$ then :
Mathematics · Limits Continuity and Differentiability · MCQ
Q21.Let $p = x \to 0^{+} lim (1 + tan^{2} x)^{\frac{1}{2 x}}$ then $l o g p$ is equal to :
Mathematics · Limits Continuity and Differentiability · MCQ
Q22.A value of $θ$ for which $\frac{2 + 3 i s i n θ}{1 - 2 i s i n θ}$ is purely imaginary, is :
Mathematics · Complex Numbers · MCQ
Q23.If the standard deviation of the numbers 2, 3, a and 11 is 3.5, then which of the following is true?
Mathematics · Statistics · MCQ
Q24.Let two fair six-faced dice $A$ and $B$ be thrown simultaneously. If $E_{1}$ is the event that die $A$ shows up four, $E_{2}$ is the event that die $B$ shows up two and $E_{3}$ is the event that the sum of numbers on both dice is odd, then…
Mathematics · Probability · MCQ
Q25.If a curve $y = f (x)$ passes through the point $(1, - 1)$ and satisfies the differential equation, $y (1 + x y) d x = x d y$ , then $f (- \frac{1}{2})$ is equal to :
Mathematics · Differential Equations · MCQ
Q26.The area (in sq. units) of the region ${(x, y) : y^{2} \geq 2 x an d x^{2} + y^{2} \leq 4 x, x \geq 0, y \geq 0}$ is :
Mathematics · Area Under the Curves · MCQ
Q27.The integral $\int \frac{2 x ^{12} + 5 x ^{9}}{( x ^{5} + x ^{3} + 1 ) ^{3}} d x$ is equal to :
Mathematics · Indefinite Integrals · MCQ
Q28.The system of linear equations $x + λ y - z = 0 λ x - y - z = 0 x + y - λ z = 0$ has a non-trivial solution for :
Mathematics · Matrices and Determinants · MCQ
Q29.If $A = [5 a 3 - b 2]$ and $A$ adj $A = A A^{T},$ then $5 a + b$ is equal to :
Mathematics · Matrices and Determinants · MCQ
Q30.A wire of length $2$ units is cut into two parts which are bent respectively to form a square of side $= x$ units and a circle of radius $= r$ units. If the sum of the areas of the square and the circle so formed is minimum, then:
Mathematics · Application of Derivatives · MCQ
Q31.The eccentricity of the hyperbola whose length of the latus rectum is equal to $8$ and the length of its conjugate axis is equal to half of the distance between its foci, is :
Mathematics · Hyperbola · MCQ
Q32.If one of the diameters of the circle, given by the equation, $x^{2} + y^{2} - 4 x + 6 y - 12 = 0,$ is a chord of a circle $S$ , whose centre is at $(- 3, 2)$ , then the radius of $S$ is :
Mathematics · Circle · MCQ
Q33.Two sides of a rhombus are along the lines, $x - y + 1 = 0$ and $7 x - y - 5 = 0$ . If its diagonals intersect at $(- 1, - 2)$ , then which one of the following is a vertex of this rhombus?
Mathematics · Straight Lines and Pair of Straight Lines · MCQ
Q34.If the $2^{n d}, 5^{t h} an d 9^{t h}$ terms of a non-constant A.P. are in G.P., then the common ratio of this G.P. is :
Mathematics · Sequences and Series · MCQ
Q35.If all the words (with or without meaning) having five letters,formed using the letters of the word SMALL and arranged as in a dictionary, then the position of the word SMALL is :
Mathematics · Permutations and Combinations · MCQ
Q36.The sum of all real values of $x$ satisfying the equation $(x^{2} - 5 x + 5)^{x^{2} + 4 x - 60} = 1$ is :
Mathematics · Quadratic Equation and Inequalities · MCQ
Q37.If $f (x) + 2 f (\frac{1}{x}) = 3 x, x e q 0$ , and $S = {x \in R : f (x) = f (- x)}$ ; then $S :$
Mathematics · Functions · MCQ
Q38.Identify the semiconductor devices whose characteristics are given below, in the order $(a), (b), (c), (d)$ : Includes diagram
Physics · Electronic Devices · MCQ
Q39.If $a, b, c, d$ are inputs to a gate and $x$ is its output, then, as per the following time graph, the gate is : Includes diagram
Physics · Electronic Devices · MCQ
Q40.Radiation of wavelength $λ,$ is incident on a photocell. The fastest emitted electron has speed $v .$ If the wavelength is changed to $\frac{3 λ}{4},$ the speed of the fastest emitted electron will be:
Physics · Dual Nature of Radiation · MCQ
Q41.An observer looks at a distant tree of height $10 m$ with a telescope of magnifying power of $20.$ To the observer the tree appears:
Physics · Geometrical Optics · MCQ
Q42.Arrange the following electromagnetic radiations per quantum in the order of increasing energy : A : Blue light B : Yellow light C : X-ray D : Radiowave.
Physics · Electromagnetic Waves · MCQ
Q43.An arc lamp requires a direct current of 10 A at 80 V to function. If it is connected to a 220 V (rms), 50 Hz AC supply, the series inductor needed for it to work is close to :
Physics · Alternating Current · MCQ
Q44.A particle of mass m is moving along the side of a square of side ‘a’, with a uniform speed v in the x-y plane as shown in the figure : Which of the following statements is false for the angular momentum $L$ about the… Includes diagram
Physics · Rotational Motion · Multiple correct
Q45.The box of a pin hole camera, of length $L,$ has a hole of radius a. It is assumed that when the hole is illuminated by a parallel beam of light of wavelength $λ$ the spread of the spot (obtained on the opposite wall of the camera)…
Physics · Wave Optics · MCQ
Q46.In an experiment for determination of refractive index of glass of a prism by $i - δ,$ plot it was found thata ray incident at angle $3 5^{\circ}$ , suffers a deviation of $4 0^{\circ}$ and that it emerges at angle $7 9^{\circ} .$ …
Physics · Geometrical Optics · MCQ
Q47.Two identical wires $A$ and $B,$ each of length $^{'} l^{'}$ , carry the same current $I$ . Wire $A$ is bent into a circle of radius $R$ and wire $B$ is bent to form a square of side $^{'} a^{'}$ . If $B_{A}$ and $B_{B}$ are the values of magnetic fields…
Physics · Magnetics · MCQ
Q48.A galvanometer having a coil resistance of $100 Ω$ gives a full scale deflection, when a currect of $1 m A$ is passed through it. The value of the resistance, which can convert this galvanometer into ammeter giving a full scale…
Physics · Current Electricity · MCQ
Q49.The temperature dependence of resistance of $C u$ and undoped $S i$ in the temperature range $300 - 400 K,$ is best described by :
Physics · Electronic Devices · MCQ
Q50.A combination of capacitors is set up as shown in the figure. The magnitude of the electric field, due to a point charge $Q$ (having a charge equal to the sum of the charges on the $4 μ F$ and $9 μ F$ capacitors), at a point distance $30 m$ … Includes diagram
Physics · Capacitor · MCQ
Q51.The region between two concentric spheres of radii $^{'} a^{'}$ and $^{'} b^{'},$ respectively (see figure), have volume charge density $ρ = \frac{A}{r},$ where $A$ is a constant and $r$ is the distance from the center. A such that the electric field… Includes diagram
Physics · Electrostatics · MCQ
Q52.A pipe open at both ends has a fundamental frequency $f$ in air. The pipe is dipped vertically in water so that half of it is in water. The fundamental frequency of the air column is now :
Physics · Waves · MCQ
Q53.A uniform string of length $20 m$ is suspended from a rigid support. A short wave pulse is introduced at its lowest end. It starts moving up the string. The time taken to reach the supports is : (take $g = 10 m s^{- 2}$ )
Physics · Waves · MCQ
Q54.A particle performs simple harmonic motion with amplitude $A .$ Its speed is trebled at the instant that it is at a distance $\frac{2 A}{3}$ from equilibrium position. The new amplitude of the motion is:
Physics · Simple Harmonic Motion · MCQ
Q55. $^{'} n^{'}$ moles of an ideal gas undergoes a process $A \to B$ as shown in the figure. The maximum temperature of the gas during the process will be : Includes diagram
Physics · Heat and Thermodynamics · MCQ
Q56.A roller is made by joining together two cones at their vertices $0$ . It is kept on two rails $A B$ and $C D$ , which are placed asymmetrically (see figure), with its axis perpendicular to $C D$ and its center $O$ at the center of line joining… Includes diagram
Physics · Rotational Motion · MCQ
Q57.An ideal gas undergoes a quasi static, reversible process in which its molar heat capacity $C$ remains constant. If during this process the relation of pressure $P$ and volume $V$ is given by $P V^{n} =$ constant, then $n$ is given by (Here…
Physics · Heat and Thermodynamics · MCQ
Q58.A pendulum clock loses $12 s$ a day if the temperature is $4 0^{\circ} C$ and gains $4 s$ a day if the temperature is $2 0^{\circ} C .$ The temperature at which the clock will show correct time, and the co-efficient of linear expansion $(α)$ …
Physics · Heat and Thermodynamics · MCQ
Q59.A point particle of mass $m,$ moves long the uniformly rough track $P QR$ as shown in the figure. The coefficient of friction, between the particle and the rough track equals $μ .$ The particle is released, from rest from the point $P$ … Includes diagram
Physics · Work Power and Energy · MCQ
Q60.A satellite is revolving in a circular orbit at a height $^{'} h^{'}$ from the earth's surface (radius of earth $R; h << R$ ). The minimum increase in its orbital velocity required, so that the satellite could escape from the earth's…
Physics · Gravitation · MCQ
Q61.A person trying to lose weight by burning fat lifts a mass of $10 k g$ upto a height of $1 m 1000$ times. Assume that the potential energy lost each time he lowers the mass is dissipated. How much fat will he use up considering the work done…
Physics · Work Power and Energy · MCQ
Q62.A screw gauge with a pitch of 0.5 mm and a circular scale with 50 divisions is used to measure the thickness of a thin sheet of Aluminium. Before starting the measurement, it is found that when the two jaws of the screw gauge are brought…
Physics · Units and Measurements · MCQ
Q63.A student measures the time period of 100 oscillations of a simple pendulum four times. The data set is 90 s, 91 s, 95 s and 92 s. If the minimum division in the measuring clock is 1 s, then the reported mean time should be :
Physics · Units and Measurements · MCQ