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Physics · 2024 · 29 Jan · Shift 2

30 questions from this JEE Main paper

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2024 · 29 Jan · Shift 2
Physics

Physics · 2024 · 29 Jan · Shift 2

30 questions from this JEE Main paper

Properties of Matter3 questions Current Electricity2 questions Units and Measurements1 questions Circular Motion2 questions Electronic Devices1 questions Work Power and Energy1 questions Electrostatics1 questions Gravitation1 questions Heat and Thermodynamics2 questions Geometrical Optics1 questions Electromagnetic Waves1 questions Alternating Current1 questions Motion in A Straight Line1 questions Simple Harmonic Motion2 questions Wave Optics2 questions Atoms and Nuclei2 questions Dual Nature of Radiation1 questions Magnetics2 questions Capacitor1 questions Rotational Motion1 questions Electromagnetic Induction1 questions

Q61.A small liquid drop of radius $R$ is divided into 27 identical liquid drops. If the surface tension is $T$ , then the work done in the process will be:
Physics · Properties of Matter · MCQ
Q62.In the given circuit, the current in resistance R $_{3}$ is : Includes diagram
Physics · Current Electricity · MCQ
Q63.A physical quantity $Q$ is found to depend on quantities $a, b, c$ by the relation $Q = \frac{a ^{4} b ^{3}}{c ^{2}}$ . The percentage error in $c$ and $c$ are $5%$ and $5%$ respectively. Then, the percentage error in $Q$ is :
Physics · Units and Measurements · MCQ
Q64.A stone of mass $1 m$ is tied to a string and moved in a vertical circle of radius $10 rpm$ making $π^{2} = 9.8$ . The tension in the string, when the stone is at the lowest point is (if $π^{2} = 9.8$ and $g = 9.8 m / s^{2}$ …
Physics · Circular Motion · MCQ
Q65.The truth table for this given circuit is : Includes diagram
Physics · Electronic Devices · MCQ
Q66.A bob of mass ' $m$ ' is suspended by a light string of length ' $L$ '. It is imparted a minimum horizontal velocity at the lowest point $A$ such that it just completes half circle reaching the top most position B. The ratio of kinetic… Includes diagram
Physics · Work Power and Energy · MCQ
Q67.An electric field is given by $(6 \hat{i} + 5 \hat{j} + 3 \hat{k}) N / C$ . The electric flux through a surface area $30 \hat{i} m^{2}$ lying in YZ-plane (in SI unit) is :
Physics · Electrostatics · MCQ
Q68.A planet takes 200 days to complete one revolution around the Sun. If the distance of the planet from Sun is reduced to one fourth of the original distance, how many days will it take to complete one revolution :
Physics · Gravitation · MCQ
Q69.A wire of length $L$ and radius $r$ is clamped at one end. If its other end is pulled by a force $F$ , its length increases by $l$ . If the radius of the wire and the applied force both are reduced to half of their original values keeping…
Physics · Properties of Matter · MCQ
Q70.The temperature of a gas having $2.0 \times 1 0^{25}$ molecules per cubic meter at $k = 1.38 \times 1 0^{- 23} JK^{- 1}$ (Given, $k = 1.38 \times 1 0^{- 23} JK^{- 1}$ ) is :
Physics · Heat and Thermodynamics · MCQ
Q71.If the distance between object and its two times magnified virtual image produced by a curved mirror is $15 cm$ , the focal length of the mirror must be:
Physics · Geometrical Optics · MCQ
Q72.A plane electromagnetic wave of frequency $X$ travels in free space along the $X$ -direction. At a particular point (in space and time) $E = 9.6 \hat{j} V / m$ . The value of magnetic field at this point…
Physics · Electromagnetic Waves · MCQ
Q73.In an a.c. circuit, voltage and current are given by: $V = 100 sin (100 t) V$ and $I = 100 sin (100 t + \frac{π}{3}) mA$ respectively. The average power dissipated in one cycle is:
Physics · Alternating Current · MCQ
Q74.A particle is moving in a straight line. The variation of position ' $x$ ' as a function of time ' $t$ ' is given as $x = (t^{3} - 6 t^{2} + 20 t + 15) m$ . The velocity of the body when its acceleration becomes zero is :
Physics · Motion in A Straight Line · MCQ
Q75.The bob of a pendulum was released from a horizontal position. The length of the pendulum is $10%$ . If it dissipates $10%$ of its initial energy against air resistance, the speed with which the bob arrives at the lowest point…
Physics · Simple Harmonic Motion · MCQ
Q76. $N$ moles of a polyatomic gas $(f = 6)$ must be mixed with two moles of a monoatomic gas so that the mixture behaves as a diatomic gas. The value of $N$ is :
Physics · Heat and Thermodynamics · MCQ
Q77.In Young's double slit experiment, light from two identical sources are superimposing on a screen. The path difference between the two lights reaching at a point on the screen is $7 λ /4$ . The ratio of intensity of fringe at this…
Physics · Wave Optics · MCQ
Q78.Given below are two statements: Statement I : Most of the mass of the atom and all its positive charge are concentrated in a tiny nucleus and the electrons revolve around it, is Rutherford's model. Statement II : An atom is a spherical…
Physics · Atoms and Nuclei · MCQ
Q79.Two sources of light emit with a power of $300 nm$ . The ratio of number of photons of visible light emitted by each source having wavelengths $500 nm$ and $500 nm$ respectively, will be :
Physics · Dual Nature of Radiation · MCQ
Q80.Two particles $X$ and $Y$ having equal charges are being accelerated through the same potential difference. Thereafter they enter normally in a region of uniform magnetic field and describes circular paths of radii $R_{1}$ and $R_{2}$ …
Physics · Magnetics · MCQ
Q81.In the given circuit, the current flowing through the resistance $20Ω$ is $0.9 A$ , while the ammeter reads $R_{1}$ . The value of $R_{1}$ is $Ω$ . Includes diagram
Physics · Current Electricity · Numerical
Q82.In the given figure, the charge stored in $6 μ F$ capacitor, when points $A$ and $B$ are joined by a connecting wire is $μ C$ . Includes diagram
Physics · Capacitor · Numerical
Q83.In a single slit diffraction pattern, a light of wavelength 6000 $A o$ is used. The distance between the first and third minima in the diffraction pattern is found to be $50 cm$ when the screen in placed $50 cm$ …
Physics · Wave Optics · Numerical
Q84.A body of mass $32 ms^{- 1}$ moving with a uniform speed $32 ms^{- 1}$ in $X - Y$ plane along the line $y = x + 4$ . The angular momentum of the particle about the origin will be $kg m^{2} s^{- 1}$ …
Physics · Rotational Motion · Numerical
Q85.Hydrogen atom is bombarded with electrons accelerated through a potential difference of $V$ , which causes excitation of hydrogen atoms. If the experiment is being performed at $T = 0 K$ , the minimum potential…
Physics · Atoms and Nuclei · Numerical
Q86.A simple harmonic oscillator has an amplitude $A$ and time period $6 π$ second. Assuming the oscillation starts from its mean position, the time required by it to travel from $x =$ A to $x = \frac{3}{2}$ A will be $\frac{π}{x} s$ …
Physics · Simple Harmonic Motion · Numerical
Q87.Two metallic wires $P$ and $Q$ have same volume and are made up of same material. If their area of cross sections are in the ratio $4 : 1$ and force $F_{1}$ is applied to $P$ , an extension of $Δ l$ is produced. The force which is…
Physics · Properties of Matter · Numerical
Q88.A particle is moving in a circle of radius $t = 0$ in such a way that at any instant the normal and tangential components of it's acceleration are equal. If its speed at $t = 0$ is $4 m / s$ , the time…
Physics · Circular Motion · Numerical
Q89.A charge of $4.0 μ C$ is moving with a velocity of $4.0 \times 1 0^{6} ms^{- 1}$ along the positive $y$ axis under a magnetic field $B$ of strength $(2 \hat{k}) T$ . The force acting on the charge is $x \hat{i} N$ …
Physics · Magnetics · Numerical
Q90.A horizontal straight wire $0.60 \times 1 0^{- 4} Wbm^{- 2}$ long extending from east to west falling freely at right angle to horizontal component of earths magnetic field $0.60 \times 1 0^{- 4} Wbm^{- 2}$ . The instantaneous value of emf induced in…
Physics · Electromagnetic Induction · Numerical