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Day 589: JEE Mains Physics

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

  1. Question 1

    Ray Optics. Asked once: 26 Jun 2022

    118
    A small bulb is placed at the bottom of a tank containing water to a depth of 7 m\sqrt{7}\text{ }m. The refractive index of water is 43\frac{4}{3}. The area of the surface of water through which light from the bulb can emerge out is xπm2x\pi m^{2}. The value of xx is ____\_\_\_\_.

  2. Question 2

    Semiconductor Electronics. Asked once: 4 Apr 2024

    96
    Identify the logic gate given in the circuit:

    Tap an option to check your answer.

  3. Question 3

    System of Particles and Rotational Motion. Asked once: 2021 Paper 17

    21
    In the given figure, two wheels PP and QQ are connected by a belt BB. The radius of PP is three times as that of QQ. In case of same rotational kinetic energy, the ratio of rotational inertias (I1I2)\left( \frac{I_{1}}{I_{2}} \right) will be x:1x:1. The value of xx will be

  4. Question 4

    Current Electricity. Asked once: 1 Feb 2024

    4
    The reading in the ideal voltmeter (V)(V) shown in the given circuit diagram is:

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  5. Question 5

    Electrostatics. Asked once: 27 Jan 2024

    118
    The electric potential at the surface of an atomic nucleus (z=50)(z = 50) of radius 9×10−13 cm9 \times10^{- 13}\text{ }cm is _____ ×106\times10^{6} V.