PYQ Vault
EbooksTutor

Day 526: JEE Mains Physics

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

  1. Question 1

    Current Electricity. Asked once: 21 Jan 2026 S1

    22
    The heat generated in 1 minute between points A and B in the given circuit, when a battery of 9 V with internal resistance of 1Ω1\Omega is connected across these points is ____\_\_\_\_ J.

  2. Question 2

    Dual Nature of Radiation and Matter. Asked once: 27 Jul 2022

    107
    With reference to the observations in photo-electric effect, identify the correct statements from below: A. The square of maximum velocity of photoelectrons varies linearly with frequency of incident light. B. The value of saturation current increases on moving the source of light away from the metal surface. C. The maximum kinetic energy of photo-electrons decreases on decreasing the power of LED (light emitting diode) source of light. D. The immediate emission of photo-electrons out of metal surface cannot be explained by particle nature of light/electromagnetic waves. E. Existence of threshold wavelength cannot be explained by wave nature of light/electromagnetic waves. Choose the correct answer from the options given below:

    Tap an option to check your answer.

  3. Question 3

    Electromagnetic Induction. Asked once: 2021 Paper 24

    2
    A square loop of side 20 cm20\text{ }cm and resistance 1Ω1\Omega is moved towards right with a constant speed v0v_{0}. The right arm of the loop is in a uniform magnetic field of 5T. The field is perpendicular to the plane of the loop and is going into it. The loop is connected to a network of resistors each of value 4Ω4\Omega. What should be the value of v0v_{0} so that a steady current of 2 mA2\text{ }mA flows in the loop?

    Tap an option to check your answer.

  4. Question 4

    Electrostatics. Asked once: 4 Apr 2025

    24
    Four capacitor each of capacitance 16μ F16\mu\text{ }F are connected as shown in the figure. The capacitance between points A and B is : ____\_\_\_\_ (in μF\mu F ).

  5. Question 5

    Kinetic Theory. Asked once: 25 Jul 2022

    104
    Sound travels in a mixture of two moles of helium and nn moles of hydrogen. If rms speed of gas molecules in the mixture is 2\sqrt{2} times the speed of sound, then the value of nn will be

    Tap an option to check your answer.