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Day 183: MHT-CET Physics

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

  1. Question 1

    Magnetic Fields Due to Electric Current. This type asked 2 times: 19 Apr 2025 S1, 18 Apr 2026 S2. This one: 18 Apr 2026 S2 See all 2 of this type

    131
    A particle of charge 'qq' and mass 'mm' moves in a circular orbit of radius 'rr' with angular speed 'ω\omega'. The ratio of the magnitude of its magnetic moment to that of its angular momentum depends upon

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  2. Question 2

    Rotational Dynamics. This type asked 2 times: 10 May 2024 S1, 18 Apr 2026 S2. This one: 18 Apr 2026 S2 See all 2 of this type

    105
    Given identical rings are arranged in a hexagonal plane pattern so as to touch each neighbouring ring as shown in figure. Each ring has mass M and radius R. The moment of inertia of the system of seven rings about an axis passing through the centre of central ring and normal to plane of all rings is

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  3. Question 3

    Thermodynamics. This type asked 2 times: 9 May 2023 S1, 17 Apr 2026 S2. This one: 17 Apr 2026 S2 See all 2 of this type

    115
    A thermodynamic system is compressed adiabatically, then its temperature

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  4. Question 4

    Semiconductor Devices. This type asked 2 times: 14 May 2024 S1, 16 Apr 2026 S2. This one: 16 Apr 2026 S2 See all 2 of this type

    149
    Which of the following statement is NOT correct in the case of LED? (A) It is a heavily doped p-n junction diode. (B) It emits light only when it is forward biased. (C) It emits light only when it is reverse biased. (D) The energy of the light emitted is equal to or slightly less than the energy gap of the semiconductor used.

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  5. Question 5

    Magnetic Fields Due to Electric Current. This type asked 2 times: 22 Apr 2025 S2, 16 Apr 2026 S1. This one: 22 Apr 2025 S2 See all 2 of this type

    28
    A particle of charge qq moves with a velocity V→=ai^\overrightarrow{V}= a\widehat{i} in a magnetic field B→=bj^+ck^\overrightarrow{B}= b\widehat{j}+ c\widehat{k}, where ' a ', ' b ' and ' c ' are constants. The magnitude of force experienced by particle is

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