PYQ Vault

Day 170: JEE Mains Physics

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

  1. Question 1

    Work, Energy and Power. Asked once: 6 Apr 2024 (same type asked 5 times) See all 5 of this type

    16
    Four particles A, B, C, D of mass m2, m,2 m,4 m\frac{m}{2},\text{ }m,2\text{ }m,4\text{ }m, have same momentum, respectively. The particle with maximum kinetic energy is:

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  2. Question 2

    Alternating Current. Asked once: 12 Apr 2023 (same type asked 5 times) See all 5 of this type

    20
    Given below are two statements: Statement I: When the frequency of an a.c. source in a series LCR circuit increases, the current in the circuit first increases, attains a maximum value and then decreases. Statement II: In a series LCR circuit, the value of power factor at resonance is one. In the light of given statements, choose the most appropriate answer from the options given below:

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  3. Question 3

    Laws of Motion. Asked once: 24 Jan 2023 (same type asked 5 times) See all 5 of this type

    11
    Given below are two statements: Statement I: An elevator can go up or down with uniform speed when its weight is balanced with the tension of its cable. Statement II: Force exerted by the floor of an elevator on the foot of a person standing on it is more than his/her weight when the elevator goes down with increasing speed. In the light of the above statements, choose the correct answer from the options given below:

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  4. Question 4

    Alternating Current. Asked once: 27 Jun 2022 (same type asked 5 times) See all 5 of this type

    11
    The current flowing through an ac circuit is given by
    I=5sin⁡(120πt)AI = 5\sin(120\pi t)A
    How long will the current take to reach the peak value starting from zero?

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  5. Question 5

    Work, Energy and Power. Asked once: 31 Jan 2023 (same type asked 5 times) See all 5 of this type

    15
     100\ 100 balls each of mass m moving with speed vv simultaneously strike a wall normally and reflected back with same speed, in time tsectsec. The total force exerted by the balls on the wall is

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