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Physics · 2024 · 30 Jan · Shift 2

30 questions from this JEE Main paper

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2024 · 30 Jan · Shift 2
Physics

Physics · 2024 · 30 Jan · Shift 2

30 questions from this JEE Main paper

Units and Measurements2 questions Atoms and Nuclei2 questions Electronic Devices1 questions Alternating Current2 questions Heat and Thermodynamics3 questions Laws of Motion2 questions Current Electricity2 questions Electromagnetic Induction1 questions Dual Nature of Radiation2 questions Wave Optics1 questions Electrostatics2 questions Gravitation2 questions Motion in A Plane1 questions Work Power and Energy1 questions Properties of Matter1 questions Magnetics1 questions Rotational Motion1 questions Waves1 questions Geometrical Optics1 questions Vector Algebra1 questions

Q61.If 50 Vernier divisions are equal to 49 main scale divisions of a traveling microscope and one smallest reading of main scale is $0.5 mm$ , the Vernier constant of traveling microscope is
Physics · Units and Measurements · MCQ
Q62.An electron revolving in $n^{th}$ Bohr orbit has magnetic moment $μ_{n}$ . If $μ_{n} \propto n^{x}$ , the value of $x$ is
Physics · Atoms and Nuclei · MCQ
Q63.In the given circuit, the voltage across load resistance (R $_{L}$ ) is : Includes diagram
Physics · Electronic Devices · MCQ
Q64.An alternating voltage $V (t) = 220 sin 100 π t$ volt is applied to a purely resistive load of $50Ω$ . The time taken for the current to rise from half of the peak value to the peak value is:
Physics · Alternating Current · MCQ
Q65.Choose the correct statement for processes A & B shown in figure. Includes diagram
Physics · Heat and Thermodynamics · Multiple correct
Q66.A block of mass $m$ is placed on a surface having vertical crossection given by $y = x^{2} /4$ . If coefficient of friction is 0.5, the maximum height above the ground at which block can be placed without slipping is:
Physics · Laws of Motion · MCQ
Q67.A block of ice at $- 1 0^{\circ} C$ is slowly heated and converted to steam at $10 0^{\circ} C$ . Which of the following curves represent the phenomenon qualitatively:
Physics · Heat and Thermodynamics · MCQ
Q68.When a potential difference $V$ is applied across a wire of resistance $R$ , it dissipates energy at a rate $W$ . If the wire is cut into two halves and these halves are connected mutually parallel across the same supply, the energy…
Physics · Current Electricity · MCQ
Q69.Match List I with List II Choose the correct answer from the options given below: Includes table
Physics · Electromagnetic Induction · MCQ
Q70.In a nuclear fission reaction of an isotope of mass $M$ , three similar daughter nuclei of same mass are formed. The speed of a daughter nuclei in terms of mass defect $Δ M$ will be :
Physics · Atoms and Nuclei · MCQ
Q71.For the photoelectric effect, the maximum kinetic energy $(E_{k})$ of the photoelectrons is plotted against the frequency $(v)$ of the incident photons as shown in figure. The slope of the graph gives Includes diagram
Physics · Dual Nature of Radiation · MCQ
Q72.A beam of unpolarised light of intensity $I_{0}$ is passed through a polaroid $A$ and then through another polaroid $B$ which is oriented so that its principal plane makes an angle of $4 5^{\circ}$ relative to that of $A$ . The intensity of…
Physics · Wave Optics · MCQ
Q73.If three moles of monoatomic gas $(γ = \frac{5}{3})$ is mixed with two moles of a diatomic gas $(γ = \frac{7}{5})$ , the value of adiabatic exponent $γ$ for the mixture is
Physics · Heat and Thermodynamics · MCQ
Q74.Three blocks $C$ and $C$ are pulled on a horizontal smooth surface by a force of $_{1}$ as shown in figure The tensions T $_{1}$ and T $_{2}$ in the string are respectively : Includes diagram
Physics · Laws of Motion · MCQ
Q75.A particle of charge ' $- q$ ' and mass ' $m$ ' moves in a circle of radius ' $r$ ' around an infinitely long line charge of linear charge density ' $+ λ$ '. Then time period will be given as : (Consider $k$ as Coulomb's constant)
Physics · Electrostatics · MCQ
Q76.Escape velocity of a body from earth is $11.2 km / s$ . If the radius of a planet be onethird the radius of earth and mass be one-sixth that of earth, the escape velocity from the planet is :
Physics · Gravitation · MCQ
Q77.Projectiles A and B are thrown at angles of $4 5^{\circ}$ and $6 0^{\circ}$ with vertical respectively from top of a $v_{A} : v_{B}$ high tower. If their ranges and times of flight are same, the ratio of their speeds of projection $v_{A} : v_{B}$ …
Physics · Motion in A Plane · MCQ
Q78.If the total energy transferred to a surface in time $t$ is $6.48 \times 1 0^{5} J$ , then the magnitude of the total momentum delivered to this surface for complete absorption will be:
Physics · Dual Nature of Radiation · MCQ
Q79.If mass is written as $m = k c^{P} G^{- 1/2} h^{1/2}$ then the value of $P$ will be : (Constants have their usual meaning with $k a$ dimensionless constant)
Physics · Units and Measurements · MCQ
Q80.A block of mass $6 0^{\circ}$ is pushed up a surface inclined to horizontal at an angle of $6 0^{\circ}$ by a force of $10 m$ parallel to the inclined surface as shown in figure. When the block is pushed up by $10 m$ … Includes diagram
Physics · Work Power and Energy · MCQ
Q81.A big drop is formed by coalescing 1000 small identical drops of water. If $E_{1}$ be the total surface energy of 1000 small drops of water and $E_{2}$ be the surface energy of single big drop of water, then $E_{1} : E_{2}$ is $x : 1$ where $x =$ …
Physics · Properties of Matter · Numerical
Q82.A power transmission line feeds input power at $230 V$ to a step down transformer with its primary winding having 3000 turns. The output power is delivered at $230 V$ by the transformer. The current in the primary of…
Physics · Alternating Current · Numerical
Q83.The current of $1 m$ flows in a square loop of sides $X 2 \times 1 0^{- 7} T$ is placed in air. The magnetic field at the centre of the loop is $X 2 \times 1 0^{- 7} T$ . The value of $X$ is .
Physics · Magnetics · Numerical
Q84.Two discs of moment of inertia $I_{1} = 4 kg m^{2}$ and $I_{2} = 2 kg m^{2}$ , about their central axes & normal to their planes, rotating with angular speeds $10 rad / s$ & $4 rad / s$ …
Physics · Rotational Motion · Numerical
Q85.A point source is emitting sound waves of intensity $16 \times 1 0^{- 8} Wm^{- 2}$ at the origin. The difference in intensity (magnitude only) at two points located at a distances of $2 m$ and $4 m$ from the origin respectively will…
Physics · Waves · Numerical
Q86.Two resistance of $100Ω$ and $200Ω$ are connected in series with a battery of $100Ω$ and negligible internal resistance. A voltmeter is used to measure voltage across $100Ω$ resistance, which gives reading as $1 V$ …
Physics · Current Electricity · Numerical
Q87.Two identical charged spheres are suspended by strings of equal lengths. The strings make an angle of $3 7^{\circ}$ with each other. When suspended in a liquid of density $0.7 g / cm^{3}$ , the angle remains same. If density…
Physics · Electrostatics · Numerical
Q88.A simple pendulum is placed at a place where its distance from the earth's surface is equal to the radius of the earth. If the length of the string is $4 m$ , then the time period of small oscillations will be s.…
Physics · Gravitation · Numerical
Q89.In an experiment to measure the focal length $(f)$ of a convex lens, the magnitude of object distance $(x)$ and the image distance $(y)$ are measured with reference to the focal point of the lens. The $y$ - $x$ plot is shown in figure. The… Includes diagram
Physics · Geometrical Optics · Numerical
Q90.A vector has magnitude same as that of $A = 3 \hat{i} + 4 \hat{j}$ and is parallel to $B = 4 \hat{i} + 3 \hat{j}$ . The $x$ and $y$ components of this vector in first quadrant are $x$ and 3 respectively where…
Physics · Vector Algebra · Numerical