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Day 224: MHT-CET Physics

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

  1. Question 1

    Dual Nature of Radiation and Matter. Asked once: 19 Apr 2025 S2 (same type asked 5 times) See all 5 of this type

    49
    The maximum velocity of the photoelectrons emitted by a metal surface is 9×105 m/s9\times10^{5}\,m/s. The value of ratio of charge (e) to mass (m) of the photoelectron is 1.8×1011 C/kg1.8\times10^{11}\,C/kg. The value of stopping potential in volt is

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  2. Question 2

    Rotational Dynamics. Asked once: 15 Apr 2026 S2 (same type asked 5 times) See all 5 of this type

    104
    A particle at rest starts moving with constant angular acceleration 'α\alpha' in a circular path of radius 'r'. At certain instant, the magnitude of centripetal acceleration is (13)rd\left(\dfrac{1}{3}\right)^{rd} the tangential acceleration. The relation between linear speed (V) and angular acceleration (α\alpha) is

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  3. Question 3

    Current Electricity. Asked once: 11 May 2024 S2 (same type asked 5 times) See all 5 of this type

    27
    Potential difference between the points P and Q is nearly

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  4. Question 4

    Optics (Ray). Asked once: 9 May 2023 S2 (same type asked 5 times) See all 5 of this type

    13
    Concave and convex lenses are placed touching each other. The ratio of magnitudes of their power is 2:3. The focal length of the system is 30 cm. The focal lengths of individual lens are

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  5. Question 5

    Oscillations. Asked once: 13 Apr 2026 S2 (same type asked 4 times) See all 4 of this type

    119
    A block is fastened to a horizontal spring. The block is pulled to a distance x=10x = 10 cm from its equilibrium position (at x=0x = 0) on a frictionless surface from rest. The kinetic energy of the block at x=5x = 5 cm is 0.250.25 J. The spring constant of the spring is nearly (in Nm−1\mathrm{Nm^{-1}})

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