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Day 341: JEE Mains Physics

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

  1. Question 1

    Wave Optics. Asked once: 2021 Paper 25 (same type asked 6 times) See all 6 of this type

    3
    In a Young's double slit experiment two slits are separated by 2 mm2\text{ }mm and the screen is placed one meter away. When a light of wavelength 500 nm500\text{ }nm is used, the fringe separation will be:

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  2. Question 2

    System of Particles and Rotational Motion. Asked once: 26 Jun 2022 (same type asked 6 times) See all 6 of this type

    94
    Solid spherical ball is rolling on a frictionless horizontal plane surface about its axis of symmetry. The ratio of rotational kinetic energy of the ball to its total kinetic energy is:-

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  3. Question 3

    Work, Energy and Power. Asked once: 11 Apr 2023 (same type asked 6 times) See all 6 of this type

    24
    A force F→=(2+3x)i^\overrightarrow{F}= (2 + 3x)\widehat{i} acts on a particle in the xx direction where FF is in newton and xx is in meter. The work done by this force during a displacement from x=0x = 0 to x=4 mx = 4\text{ }m, is ____\_\_\_\_ J.

  4. Question 4

    Dual Nature of Radiation and Matter. Asked once: 2021 Paper 21 (same type asked 6 times) See all 6 of this type

    13
    A monochromatic neon lamp with wavelength of 670.5 nm670.5\text{ }nm illuminates a photo-sensitive material which has a stopping voltage of 0.48 V0.48\text{ }V. What will be the stopping voltage if the source light is changed with another source of wavelength of 474.6 nm474.6\text{ }nm ?

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  5. Question 5

    Oscillations. Asked once: 28 Jul 2022 (same type asked 6 times) See all 6 of this type

    96
    Assume there are two identical simple pendulum Clocks-1 is placed on the earth and Clock-2 is placed on a space station located at a height hh above the earth surface. Clock-1 and Clock-2 operate at time periods 4 s4\text{ }s and 6 s6\text{ }s respectively. Then the value of hh is (consider radius of earth RE=6400 kmR_{E}= 6400\text{ }km and gg on earth 10 m/s210\text{ }m/s^{2} )

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