PYQ Vault

Day 256: JEE Mains Physics

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

  1. Question 1

    Wave Optics. Asked once: 2 Apr 2026 S2 (same type asked 8 times) See all 8 of this type

    21
    In a Young's double slit experiment, the intensity at some point on the screen is found to be 34\frac{3}{4} times of the maximum of the interference pattern. The path difference between the interfering waves at this point is λx\frac{\lambda}{x} where λ\lambda is wavelength of the incident light. The value of x is ____\_\_\_\_ .
  2. Question 2

    Ray Optics. Asked once: 2 Apr 2025 (same type asked 8 times) See all 8 of this type

    17
    A spherical surface separates two media of refractive indices 1 and 1.5 as shown in figure Distance of the image of an object ' O ', is :( C is the center of curvature of the spherical surface and R is the radius of curvature)

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  3. Question 3

    Units and Measurements. Asked once: 10 Apr 2023 (same type asked 8 times) See all 8 of this type

    94
    In an experiment with Vernier callipers of least count 0.1 mm0.1\text{ }mm, when two jaws are joined together the zero of Vernier scale lies right to the zero of the main scale and 6th 6^{\text{th~}} division of Vernier scale coincides with the main scale division. While measuring the diameter of a spherical bob, the zero of vernier scale lies in between 3.2 cm3.2\text{ }cm and 3.3 cm3.3\text{ }cm marks, and 4th 4^{\text{th~}} division of vernier scale coincides with the main scale division. The diameter of bob is measured as:

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  4. Question 4

    Dual Nature of Radiation and Matter. Asked once: 29 Jul 2022 (same type asked 8 times) See all 8 of this type

    100
    An α\alpha particle and a proton are accelerated from rest through the same potential difference. The ratio of linear momenta acquired by above two particles will be:

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  5. Question 5

    Gravitation. Asked once: 6 Apr 2023 (same type asked 8 times) See all 8 of this type

    110
    The weight of a body on the surface of the earth is 100 N100\text{ }N. The gravitational force on it when taken at a height, from the surface of earth, equal to one fourth the radius of the earth is:

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