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Day 175: MHT-CET Physics

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

  1. Question 1

    Electrostatics. This type asked 2 times: 11 May 2023 S2, 19 May 2026 S2. This one: 19 May 2026 S2 See all 2 of this type

    125
    A dipole of electric dipole moment P⃗\vec{P} is placed in an electric field of strength E⃗\vec{E}. The angle between P⃗\vec{P} and E⃗\vec{E} for which the potential energy of the electric dipole is maximum, is

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  2. Question 2

    Oscillations. This type asked 2 times: 9 May 2023 S2, 19 May 2026 S2. This one: 19 May 2026 S2 See all 2 of this type

    119
    The total energy of a particle executing SHM is EE. If the amplitude is doubled and the frequency is halved, the new total energy will be

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  3. Question 3

    Sound. This type asked 2 times: 18 Apr 2026 S2, 19 May 2026 S2. This one: 19 May 2026 S2 See all 2 of this type

    124
    A man standing between two parallel cliffs fires a gun. He hear two echos one after 33 second and the other after 55 second. The separation between the two cliffs is 13601360 m, the speed of sound is

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  4. Question 4

    Superposition of Waves. This type asked 2 times: 19 Apr 2026 S1, 19 May 2026 S2. This one: 19 May 2026 S2 See all 2 of this type

    121
    A set of 88 tuning forks is arranged in ascending order of frequencies. Each fork produces 44 beats with the next one and frequency of last fork is octave of first. The frequency of 5th5^{\text{th}} fork is

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  5. Question 5

    Magnetic Materials. This type asked 2 times: 26 Apr 2025 S1, 19 May 2026 S1. This one: 19 May 2026 S1 See all 2 of this type

    131
    A magnetic dipole lying parallel to a magnetic field requires 'WW' units of work to turn it through 30∘30^\circ. The torque required to keep this needle in this position is [sin⁡30∘=cos⁡60∘=0.5,sin⁡60∘=cos⁡30∘=32,sin⁡0∘=cos⁡90∘=1]\left[\sin 30^\circ = \cos 60^\circ = 0.5, \sin 60^\circ = \cos 30^\circ = \dfrac{\sqrt{3}}{2}, \sin 0^\circ = \cos 90^\circ = 1\right]

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