PYQ Vault

Day 206: JEE Mains Physics

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

  1. Question 1

    Dual Nature of Radiation and Matter. Asked once: 30 Jan 2024 (same type asked 3 times) See all 3 of this type

    93
    For the photoelectric effect, the maximum kinetic energy ( EkE_{k} ) of the photoelectrons is plotted against the frequency (v) of the incident photons as shown in figure. The slope of the graph gives

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  2. Question 2

    Electromagnetic Waves. Asked once: 4 Apr 2024 (same type asked 3 times) See all 3 of this type

    95
    Arrange the following in the ascending order of wavelength: (A) Gamma rays (λ1)\left( \lambda_{1} \right) (B) x-ray (λ2)\left( \lambda_{2} \right) (C) Infrared waves (λ3)\left( \lambda_{3} \right) (D) Microwaves (λ4)\left( \lambda_{4} \right) Choose the most appropriate answer from the options given below :

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  3. Question 3

    Electrostatics. Asked once: 6 Apr 2024 (same type asked 3 times) See all 3 of this type

    98
    Two identical conducting spheres PP and SS with charge QQ on each, repel each other with a force 16 N16\text{ }N. A third identical uncharged conducting sphere RR is successively brought in contact with the two spheres. The new force of repulsion between PP and SS is :

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  4. Question 4

    Gravitation. Asked once: 27 Jan 2024 (same type asked 3 times) See all 3 of this type

    5
    The acceleration due to gravity on the surface of earth is gg. If the diameter of earth reduces to half of its original value and mass remains constant, then acceleration due to gravity on the surface of earth would be:

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  5. Question 5

    Units and Measurements. Asked once: 4 Apr 2024 (same type asked 3 times) See all 3 of this type

    109
    Applying the principle of homogeneity of dimensions, determine which one is correct. where TT is time period, GG is gravitational constant, MM is mass, rr is radius of orbit.

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