PYQ Vault

Day 480: JEE Mains Physics

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

  1. Question 1

    Alternating Current. Asked once: 11 Apr 2023

    9
    As per the given graph choose the correct representation for curve AA and curve BB. (Where XC=X_{C}= reactance of pure capacitive circuit connected with A.C. source XL=X_{L}= reactance of pure inductive circuit connected with A.C. source RR = impedance of pure resistive circuit connected with A.C. source Z=Z = Impedance of the LCR series circuit)

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  2. Question 2

    Atoms. Asked once: 29 Jan 2024

    109
    Given below are two statements: Statement I: Most of the mass of the atom and all its positive charge are concentrated in a tiny nucleus and the electrons revolve around it, is Rutherford's model. Statement II: An atom is a spherical cloud of positive charges with electrons embedded in it, is a special case of Rutherford's model. In the light of the above statements, choose the most appropriate from the options given below.

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  3. Question 3

    Current Electricity. Asked once: 24 Jan 2026 S2

    1
    The reading of the ammeter (A) in steady state in the following circuit (assuming negligible internal resistance of the ammeter) is ____\_\_\_\_ A.

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  4. Question 4

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

    105
    Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Number of photons increases with increase in frequency of light. Reason RR : Maximum kinetic energy of emitted electrons increases with the frequency of incident radiation. In the light of the above statements, choose the most appropriate answer from the options given below:

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  5. Question 5

    Electromagnetic Induction. Asked once: 28 Jan 2025

    96
    A conducting bar moves on two conducting rails as shown in the figure. A constant magnetic field BB exists into the page. The bar starts to move from the vertex at time t=0t= 0 with a constant velocity. If the induced EMF is E∝tnE \propto t^{n}, then value of n is _____\_\_\_\_\_ .