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Day 486: JEE Mains Physics

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

  1. Question 1

    Dual Nature of Radiation and Matter. Asked once: 4 Apr 2024

    10
    Which figure shows the correct variation of applied potential difference (V)(V) with photoelectric current (I) at two different intensities of light (I1< I2\left( I_{1}< \right.\ I_{2} ) of same wavelengths:

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  2. Question 2

    Electromagnetic Induction. Asked once: 23 Jan 2025

    25
    In the given circuit the sliding contact is pulled outwards such that electric current in the circuit changes at the rate of 8 A/s8\text{ }A/s. At an instant when RR is 12Ω12\Omega, the value of the current in the circuit will be ___\_\_\_ A.

  3. Question 3

    Electromagnetic Waves. Asked once: 27 Jul 2022

    105
    Identify the correct statements from the following descriptions of various properties of electromagnetic waves. A. In a plane electromagnetic wave electric field and magnetic field must be perpendicular to each other and direction of propagation of wave should be along electric field or magnetic field. B. The energy in electromagnetic wave is divided equally between electric and magnetic fields. C. Both electric field and magnetic field are parallel to each other and perpendicular to the direction of propagation of wave. D. The electric field, magnetic field and direction of propagation of wave must be perpendicular to each other. E. The ratio of amplitude of magnetic field to the amplitude of electric field is equal to speed of light. Choose the most appropriate answer from the options given below:

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  4. Question 4

    Electrostatics. Asked once: 24 Jan 2026 S1

    2
    Three charges +2q+2q, +3q+3q and −4q-4q are situated at (0,−3a),(2a,0)(0, - 3a),(2a,0) and (−2a,0)( - 2a,0) respectively in the xy plane. The resultant dipole moment about origin is ____\_\_\_\_

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  5. Question 5

    Gravitation. Asked once: 28 Jun 2022

    96
    Two objects of equal masses placed at certain distance from each other attracts each other with a force of F. If one-third mass of one object is transferred to the other object, then the new force will be:

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