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Day 356: MHT-CET Physics

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

  1. Question 1

    Structure of Atoms and Nuclei. Asked once: 20 Apr 2026 S2

    147
    Which of the following is an integral multiple of h2π\dfrac{h}{2\pi} in Bohr's model of an hydrogen atom?

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  2. Question 2

    Superposition of Waves. Asked once: 17 Apr 2026 S1

    121
    A and B are two wires whose fundamental frequencies are 256 Hz and 382 Hz respectively. When third harmonic of A and the second harmonic of B are sounded together, the number of beats heard in two second will be

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  3. Question 3

    Thermal Properties of Matter. Asked once: 13 May 2026 S2

    116
    Two hot bodies B1B_1 and B2B_2 have temperature 100∘C100^\circ\mathrm{C} and 80∘C80^\circ\mathrm{C} respectively at t=0t = 0. The temperature of the surroundings is 40∘C40^\circ\mathrm{C}. The ratio of the respective rates of cooling R1R_1 and R2R_2 of these two bodies at t=0t = 0 will be

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  4. Question 4

    Thermodynamics. Asked once: 12 May 2026 S1

    114
    For any thermodynamic process, the work done by the system depends

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  5. Question 5

    Wave Optics. Asked once: 20 Apr 2026 S2

    144
    In the diffraction pattern, the first maximum is at 30∘30^\circ, when a monochromatic light of wavelength λ\lambda is incident on a slit of width aa. For the same wavelength, if the slit width is changed, so that first maximum is at 45∘45^\circ. The slit width is changed by (sin⁡30∘=12,sin⁡45∘=12)\left(\sin 30^\circ = \dfrac{1}{2}, \sin 45^\circ = \dfrac{1}{\sqrt{2}}\right)

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