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Day 348: JEE Mains Physics

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

  1. Question 1

    Alternating Current. Asked once: 27 Jul 2022 (same type asked 5 times) See all 5 of this type

    104
    A series LCRLCR circuit has L=0.01H,R=10ΩL = 0.01H,R = 10\Omega and C=1μFC = 1\mu F and it is connected to ac voltage of amplitude (Vm)50 V\left( V_{m} \right)50\text{ }V. At frequency 60%60\% lower than resonant frequency, the amplitude of current will be approximately:

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  2. Question 2

    Dual Nature of Radiation and Matter. Asked once: 25 Jan 2023 (same type asked 5 times) See all 5 of this type

    94
    Given below are two statements: Statement I: Stopping potential in photoelectric effect does not depend on the power of the light source. Statement II: For a given metal, the maximum kinetic energy of the photoelectron depends on the wavelength of the incident light. In the light of above statements, choose the most appropriate answer from the options given below

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  3. Question 3

    Electromagnetic Waves. Asked once: 30 Jan 2023 (same type asked 5 times) See all 5 of this type

    25
    A point source of light is placed at the centre of curvature of a hemispherical surface. The source emits a power of 24 W24\text{ }W. The radius of curvature of hemisphere is 10 cm10\text{ }cm and the inner surface is completely reflecting. The force on the hemisphere due to the light falling on it is____ 10−8 N10^{- 8}\text{ }N

  4. Question 4

    Electrostatics. Asked once: 25 Jan 2023 (same type asked 5 times) See all 5 of this type

    108
    A point charge of 10μC10\mu C is placed at the origin. At what location on the XX-axis should a point charge of 40μC40\mu C be placed so that the net electric field is zero at x=2 cmx = 2\text{ }cm on the X-axis?

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  5. Question 5

    Motion in a Plane. Asked once: 6 Apr 2023 (same type asked 5 times) See all 5 of this type

    96
    As shown in the figure, a particle is moving with constant speed πm/s\pi m/s. Considering its motion from A to BB, the magnitude of the average velocity is:

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