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Day 227: MHT-CET Physics

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

  1. Question 1

    Motion in a Plane. Asked once: 14 May 2026 S1 (same type asked 4 times) See all 4 of this type

    101
    A vector A⃗\vec{A} has magnitude 66 units is added to vector B⃗\vec{B} which is along xx-axis. The resultant of A⃗\vec{A} and B⃗\vec{B} is along yy-axis. If the magnitude of the resultant of A⃗\vec{A} and B⃗\vec{B} is 33 times that of B⃗\vec{B} then the magnitude of B⃗\vec{B} is

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  2. Question 2

    Rotational Dynamics. Asked once: 18 Apr 2026 S2 (same type asked 4 times) See all 4 of this type

    106
    A kathak dancer is standing on horizontal surface with folded hands. In the begining dancer is rotating about his central axis and his kinetic energy is 'K' at that time. The kathak dancer now stretches his arms so that the moment of inertia of the dancer becomes three times and the angular velocity becomes one-third. The kinetic energy of the dancer now is

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  3. Question 3

    Semiconductor Devices. Asked once: 11 Apr 2026 S1 (same type asked 4 times) See all 4 of this type

    149
    In common emitter transistor amplifier, the output resistance is 500 kΩ500\ \mathrm{k\Omega} and the current gain β=50\beta = 50. If power gain of amplifier is 5×1065 \times 10^6, what is the input resistance?

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  4. Question 4

    Superposition of Waves. Asked once: 12 May 2024 S2 (same type asked 4 times) See all 4 of this type

    32
    End correction at open end for air column in a pipe of length ll is 'ee'. For its second overtone of an open pipe, the wavelength of the wave is

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  5. Question 5

    Wave Optics. Asked once: 13 May 2026 S2 (same type asked 4 times) See all 4 of this type

    142
    Two coherent sources PP and QQ produce interference at a point AA on the screen where there is a dark band which is formed between 4th4^{th} bright band and 5th5^{th} bright band. Wavelength of light used is 6000 A˚6000\ \mathrm{\mathring{A}}. The path difference between PAPA and QAQA is x×10−4x \times 10^{-4} cm. The value of xx is

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