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Day 30: MHT-CET Physics

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

  1. Question 1

    Rotational Dynamics. This type asked 6 times: 4 May 2023 S2, 10 May 2023 S1, 9 May 2024 S1, 20 Apr 2025 S2, 13 Apr 2026 S2, 18 Apr 2026 S2. This one: 18 Apr 2026 S2 See all 6 of this type

    107
    A solid sphere rolls without slipping on an inclied plane at an angle θ\theta. The ratio of total kinetic energy to its rotational kinetic energy is

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  2. Question 2

    Structure of Atoms and Nuclei. This type asked 6 times: 2 May 2023 S1, 3 May 2023 S2, 15 May 2023 S1, 15 Apr 2026 S2, 18 Apr 2026 S1, 18 Apr 2026 S2. This one: 18 Apr 2026 S2 See all 6 of this type

    146
    If the difference between (n+1)th(n + 1)^{th} Bohr radius and nthn^{th} Bohr radius is given by (n−1)th(n - 1)^{th} Bohr radius, then the value of n is

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  3. Question 3

    Magnetic Fields Due to Electric Current. This type asked 6 times: 2 May 2023 S1, 11 May 2023 S2, 15 May 2023 S1, 13 May 2024 S2, 23 Apr 2025 S1, 18 Apr 2026 S1. This one: 18 Apr 2026 S1 See all 6 of this type

    134
    The ratio of magnetic field at the centre of the current carrying circular loop and its magnetic moment is 'xx'. When both the current and radius are tripled, then the ratio will be

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  4. Question 4

    AC Circuits. This type asked 6 times: 2 May 2023 S1, 3 May 2023 S1, 16 May 2023 S1, 9 May 2024 S1, 11 Apr 2026 S1, 17 Apr 2026 S2. This one: 17 Apr 2026 S2 See all 6 of this type

    139
    In a series LCR circuit alternating e.m.f. and current are given by the equations V=V0sin⁡(ωt)V = V_0\sin(\omega t) and I=I0sin⁡(ωt+π3)I = I_0\sin\left(\omega t + \dfrac{\pi}{3}\right) respectively. The average power dissipated in the circuit over one cycle of a.c. is (cos⁡60∘=0.5)(\cos 60^\circ = 0.5)

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  5. Question 5

    Kinetic Theory of Gases. This type asked 6 times: 9 May 2023 S1, 9 May 2024 S2, 11 May 2024 S2, 14 May 2024 S1, 21 Apr 2025 S2, 25 Apr 2025 S1. This one: 25 Apr 2025 S1 See all 6 of this type

    15
    The temperature of an ideal gas is increased from 100 K to 400 K . If ' xx ' is the root mean square velocity of its molecules at 100 K , r.m.s. velocity becomes

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