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Day 592: JEE Mains Physics

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

  1. Question 1

    Motion in a Straight Line. Asked once: 2021 Paper 9

    14
    The position, velocity and acceleration of a particle moving with a constant acceleration can be represented by:

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  2. Question 2

    Ray Optics. Asked once: 2021 Paper 26

    25
    A point source of light SS, placed at a distance 60 cm60\text{ }cm infront of the centre of plane mirror of width 50 cm50\text{ }cm, hangs vertically on a wall. A man walks infront of the mirror along a line parallel to the mirror at a distance 1.2 m1.2\text{ }m from it (see in the figure). The distance between the extreme points where he can see the image of the light source in the mirror is ____\_\_\_\_ cmcm.

  3. Question 3

    Semiconductor Electronics. Asked once: 31 Jan 2024

    2
    Identify the logic operation performed by the given circuit.

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  4. Question 4

    System of Particles and Rotational Motion. Asked once: 2021 Paper 14

    20
    A ball of mass 2 kg2\text{ }kg moving with 4 m/s4\text{ }m/s collides elastically with a stationary ball. If it continues to move in original direction with 14th \frac{1}{4}^{\text{th~}} of its original velocity. Find velocity of centre of Mass of system.

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  5. Question 5

    Current Electricity. Asked once: 31 Jan 2024

    103
    By what percentage will the illumination of the lamp decrease if the current drops by 20%20\% ?

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