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Physics · 2024 · 31 Jan · Shift 2

30 questions from this JEE Main paper

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2024 · 31 Jan · Shift 2
Physics

Physics · 2024 · 31 Jan · Shift 2

30 questions from this JEE Main paper

Electromagnetic Waves1 questions Units and Measurements2 questions Dual Nature of Radiation1 questions Atoms and Nuclei2 questions Magnetics2 questions Laws of Motion2 questions Vector Algebra1 questions Current Electricity3 questions Heat and Thermodynamics2 questions Properties of Matter2 questions Wave Optics1 questions Electrostatics2 questions Work Power and Energy1 questions Alternating Current1 questions Gravitation1 questions Electronic Devices1 questions Rotational Motion2 questions Geometrical Optics1 questions Electromagnetic Induction1 questions Simple Harmonic Motion1 questions

Q61.Given below are two statements: Statement I: Electromagnetic waves carry energy as they travel through space and this energy is equally shared by the electric and magnetic fields. Statement II: When electromagnetic waves strike a surface,…
Physics · Electromagnetic Waves · MCQ
Q62.Consider two physical quantities $A$ and $B$ related to each other as $E = \frac{B - x ^{2}}{A t}$ where $t$ and $t$ have dimensions of energy, length and time respectively. The dimension of $A B$ is
Physics · Units and Measurements · MCQ
Q63.In a photoelectric effect experiment a light of frequency 1.5 times the threshold frequency is made to fall on the surface of photosensitive material. Now if the frequency is halved and intensity is doubled, the number of photo electrons…
Physics · Dual Nature of Radiation · MCQ
Q64.The mass number of nucleus having radius equal to half of the radius of nucleus with mass number 192 is :
Physics · Atoms and Nuclei · MCQ
Q65.A uniform magnetic field of $2 \times 1 0^{- 3} T$ acts along positive $Y$ -direction. A rectangular loop of sides $10 cm$ and $5 A$ with current of $Y - Z$ is in $Y - Z$ plane. The current is in…
Physics · Magnetics · MCQ
Q66.A block of mass $F_{1}$ is placed on a rough inclined surface as shown in the figure. If $F_{1}$ is the force required to just move the block up the inclined plane and $F_{2}$ is the force required to… Includes diagram
Physics · Laws of Motion · MCQ
Q67.If two vectors $A$ and $B$ having equal magnitude $R$ are inclined at angle $θ$ , then
Physics · Vector Algebra · MCQ
Q68.By what percentage will the illumination of the lamp decrease if the current drops by 20%?
Physics · Current Electricity · MCQ
Q69.The speed of sound in oxygen at S.T.P. will be approximately: (given, $R = 8.3 JK^{- 1}, γ = 1.4$ )
Physics · Heat and Thermodynamics · MCQ
Q70.A light string passing over a smooth light fixed pulley connects two blocks of masses $m_{1}$ and $m_{2}$ . If the acceleration of the system is $g /8$ , then the ratio of masses is: Includes diagram
Physics · Laws of Motion · MCQ
Q71.A gas mixture consists of 8 moles of argon and 6 moles of oxygen at temperature T. Neglecting all vibrational modes, the total internal energy of the system is:
Physics · Heat and Thermodynamics · MCQ
Q72.A small spherical ball of radius $r$ , falling through a viscous medium of negligible density has terminal velocity ' $v$ '. Another ball of the same mass but of radius $2 r$ , falling through the same viscous medium will have terminal…
Physics · Properties of Matter · MCQ
Q73.The measured value of the length of a simple pendulum is $2 mm$ with $2 mm$ accuracy. The time for 50 oscillations was measured to be 40 seconds with 1 second resolution. From these measurements, the accuracy in the…
Physics · Units and Measurements · MCQ
Q74.When unpolarized light is incident at an angle of $6 0^{\circ}$ on a transparent medium from air, the reflected ray is completely polarized. The angle of refraction in the medium is:
Physics · Wave Optics · MCQ
Q75.The resistance per centimeter of a meter bridge wire is $r$ , with $X Ω$ resistance in left gap. Balancing length from left end is at $25Ω$ with $25Ω$ resistance in right gap. Now the wire is replaced by another wire…
Physics · Current Electricity · MCQ
Q76.Force between two point charges $q_{1}$ and $q_{2}$ placed in vacuum at ' $r$ ' cm apart is $F$ . Force between them when placed in a medium having dielectric constant $K = 5$ at ' $r /5$ ' $cm$ apart will be:
Physics · Electrostatics · MCQ
Q77.A body of mass $F = (6 t \hat{i} + 6 t^{2} \hat{j}) N$ begins to move under the action of a time dependent force given by $F = (6 t \hat{i} + 6 t^{2} \hat{j}) N$ . The power developed by the force at the time $t$ is given by:
Physics · Work Power and Energy · MCQ
Q78.An AC voltage $V = 20 sin 200 π t$ is applied to a series LCR circuit which drives a current $I = 10 sin (200 π t + \frac{π}{3})$ . The average power dissipated is:
Physics · Alternating Current · MCQ
Q79.The mass of the moon is $\frac{1}{144}$ times the mass of a planet and its diameter is $\frac{1}{16}$ times the diameter of a planet. If the escape velocity on the planet is $v$ , the escape velocity on the moon will be :
Physics · Gravitation · MCQ
Q80.The output of the given circuit diagram is - Includes diagram
Physics · Electronic Devices · MCQ
Q81.Two blocks of mass $4 kg$ and $4.0 \times 1 0^{- 5} m$ are connected by a metal wire going over a smooth pulley as shown in figure. The radius of wire is $4.0 \times 1 0^{- 5} m$ and Young's modulus of the metal is $2.0 \times 1 0^{11} N / m^{2}$ … Includes diagram
Physics · Properties of Matter · Numerical
Q82.A body of mass ' $m$ ' is projected with a speed ' $u$ ' making an angle of $4 5^{\circ}$ with the ground. The angular momentum of the body about the point of projection, at the highest point is expressed as $\frac{2 m u ^{3}}{X g}$ . The…
Physics · Rotational Motion · Numerical
Q83.In the following circuit, the battery has an emf of $\frac{2}{3} Ω$ and an internal resistance of $\frac{2}{3} Ω$ . The power consumption in the entire circuit is W. Includes diagram
Physics · Current Electricity · Numerical
Q84.Two circular coils $P$ and $Q$ of 100 turns each have same radius of $P$ . The currents in $P$ and $R$ are $1 A$ and $2 A$ respectively. $P$ and $Q$ are placed with their planes mutually perpendicular with their centers…
Physics · Magnetics · Numerical
Q85.Two identical spheres each of mass $50 cm$ and radius $150 cm$ are fixed at the ends of a light rod so that the separation between the centers is $150 cm$ . Then, moment of inertia of the system about an axis…
Physics · Rotational Motion · Numerical
Q86.Light from a point source in air falls on a convex curved surface of radius $100 cm$ and refractive index 1.5. If the source is located at from the convex surface, the image will be formed at …
Physics · Geometrical Optics · Numerical
Q87.A nucleus has mass number $A_{1}$ and volume $V_{1}$ . Another nucleus has mass number $A_{2}$ and Volume $V_{2}$ . If relation between mass number is $A_{2} = 4 A_{1}$ , then $\frac{V _{2}}{V _{1}} =$ .
Physics · Atoms and Nuclei · Numerical
Q88.The distance between charges $+ q$ and $- q$ is $2 l$ and between $+ 2 q$ and $- 2 q$ is $4 l$ . The electrostatic potential at point $P$ at a distance $r$ from center $O$ is $- α [\frac{q l}{r ^{2}}] \times 1 0^{9} V$ ,… Includes diagram
Physics · Electrostatics · Numerical
Q89.The magnetic flux $ϕ$ (in weber) linked with a closed circuit of resistance $8Ω$ varies with time (in seconds) as $ϕ = 5 t^{2} - 36 t + 1$ . The induced current in the circuit at $t = 2 s$ is A.
Physics · Electromagnetic Induction · Numerical
Q90.The time period of simple harmonic motion of mass $M$ in the given figure is $π \frac{α M}{5 k}$ , where the value of $α$ is . Includes diagram
Physics · Simple Harmonic Motion · Numerical