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Day 86: JEE Mains Physics

5 questions. Try each one first, then open its answer.

  1. Question 1

    Laws of Motion. Asked 2 times: 25 Jan 2023*, 8 Apr 2026 S2 (* = numbers or wording changed that year) See all 2 times it was asked

    3
    A car moving with a speed of 54 km/h54\text{ }km/h takes a turn of radius 20 m . A simple pendulum is suspended from the ceiling of the car. Determine the angle made by the string of the pendulum with the vertical during the turning. (Take g=10 m/s2g = 10\text{ }m/s^{2} )

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  2. Question 2

    Electromagnetic Waves. Asked 2 times: 24 Jan 2023, 6 Apr 2026 S2 See all 2 times it was asked

    6
    For an electromagnetic wave propagating through vacuum, k→,E→\overrightarrow{k},\overrightarrow{E} and ω\omega represent propagation vector, electric field and angular frequency, respectively. The magnetic field associated with this wave is represented by :

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  3. Question 3

    Moving Charges and Magnetism. Asked 2 times: 13 Apr 2023*, 6 Apr 2026 S2 (* = numbers or wording changed that year) See all 2 times it was asked

    23
    A moving coil of a galvanometer when shunted with 2Ω2\Omega resistance gives a full-scale deflection for a current of 500 mA . When a resistance of 470Ω470\Omega is connected in series it gives a full-scale deflection for 10 V potential applied on it. The value of resistance of galvanometer coil is ____\_\_\_\_ Ω\Omega.

  4. Question 4

    System of Particles and Rotational Motion. Asked 2 times: 14 Jun 2022*, 5 Apr 2026 S2 (* = numbers or wording changed that year) See all 2 times it was asked

    5
    A wheel initially at rest is subjected to a uniform angular acceleration about its axis. In the first 2 s it rotates through an angle θ1\theta_{1} and in the next 2 s it rotates through an angle θ2\theta_{2}. The ratio θ2θ1\frac{\theta_{2}}{\theta_{1}} is ____\_\_\_\_ .

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  5. Question 5

    Mechanical Properties of Solids. Asked 2 times: 2021 Paper 21*, 5 Apr 2026 S1 (* = numbers or wording changed that year) See all 2 times it was asked

    18
    Two wires as shown in the figure below, made of steel and have breaking stress of 12×108 N/m212 \times10^{8}\text{ }N/m^{2}. Area of cross-section of upper wire is 0.008 cm20.008{\text{ }cm}^{2} and of lower wire is 0.004 cm20.004{\text{ }cm}^{2}. The maximum mass that can be added to pan without breaking any wire is ____\_\_\_\_ kg. (Take g=10 m/s2g = 10\text{ }m/s^{2}.)

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