PYQ Vault

Day 92: MHT-CET Physics

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

  1. Question 1

    Semiconductor Devices. This type asked 3 times: 10 May 2023 S2, 9 May 2024 S1, 19 May 2026 S2. This one: 19 May 2026 S2 See all 3 of this type

    149
    To use Zener diode of maximum power rating 1.01.0 W as a 4.04.0 V stabilized power supply, the maximum current flowing through Zener diode will

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  2. Question 2

    Electrostatics. This type asked 3 times: 4 May 2023 S1, 13 Apr 2026 S2, 19 May 2026 S1. This one: 19 May 2026 S1 See all 3 of this type

    125
    A semicircular arc of radius 'RR' is charged uniformly and has charge per unit length as λ\lambda. The electric potential VV at the centre of curvature is [ε0\varepsilon_0 = permittivity of vacuum]

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  3. Question 3

    Kinetic Theory of Gases. This type asked 3 times: May 2022 S1, 18 Apr 2026 S2, 19 May 2026 S1. This one: 19 May 2026 S1 See all 3 of this type

    118
    If 'mm' represents the mass of each molecule of a gas and 'TT' its absolute temperature respectively, then the root mean square velocity of the gaseous molecule is proportional to

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  4. Question 4

    Optics (Ray). This type asked 3 times: May 2022 S1, 19 Apr 2026 S2, 19 May 2026 S1. This one: 19 May 2026 S1 See all 3 of this type

    140
    A ray of light takes time 'tt' to travel a distance 'dd' in air and it travels a distance '4d4d', in time 'TT' in a certain medium. If T=8tT = 8t, the critical angle for the pair of media is [sin⁡(π6)=0.5,sin⁡(π4)=12,sin⁡(π3)=32,sin⁡(π2)=1]\left[\sin\left(\dfrac{\pi}{6}\right) = 0.5, \sin\left(\dfrac{\pi}{4}\right) = \dfrac{1}{\sqrt{2}}, \sin\left(\dfrac{\pi}{3}\right) = \dfrac{\sqrt{3}}{2}, \sin\left(\dfrac{\pi}{2}\right) = 1\right]

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  5. Question 5

    Rotational Dynamics. This type asked 3 times: 22 Apr 2025 S2, 23 Apr 2025 S1, 19 May 2026 S1. This one: 19 May 2026 S1 See all 3 of this type

    105
    On a dry curved (banked) road, with banking angle of zero, the maximum safe speed for a moving vehicle is 'vv'. After heavy rain, the maximum safe speed for the same road was reduced by 60%. The ratio of the coefficient of friction for the dry road to that of the wet road is

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