PYQ Vault

Day 312: JEE Mains Physics

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

  1. Question 1

    Oscillations. Asked once: 2021 Paper 8 (same type asked 3 times) See all 3 of this type

    14
    Two particles AA and BB of equal masses are suspended from two massless springs of spring constants K1K_{1} and K2K_{2} respectively. If the maximum velocities during oscillations are equal, the ratio of the amplitude of AA and BB is

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  2. Question 2

    Electrostatics. Asked once: 8 Apr 2023 (same type asked 3 times) See all 3 of this type

    21
    An electric dipole of dipole moment is 6.0×10−6Cm6.0 \times10^{- 6}Cm placed in a uniform electric field of 1.5×103NC−11.5 \times10^{3}NC^{- 1} in such a way that dipole moment is along electric field. The work done in rotating dipole by 180∘180^{\circ} in this field will be___ mJmJ
  3. Question 3

    System of Particles and Rotational Motion. Asked once: 2021 Paper 1 (same type asked 3 times) See all 3 of this type

    14
    Moment of inertia (M.I.) of four bodies, having same mass and radius, are reported as I1=I_{1}= M.I. of thin circular ring about its diameter, I2=I_{2}= M.I. of circular disc about an axis perpendicular to disc and going through the centre, I3=I_{3}= M.I. of solid cylinder about its axis and I4=I_{4}= M.I. of solid sphere about its diameter. Then :-

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  4. Question 4

    Thermodynamics. Asked once: 2021 Paper 17 (same type asked 3 times) See all 3 of this type

    10
    Two Carnot engines A and BB operate in series such that engine AA absorbs heat at T1T_{1} and rejects heat to a sink at temperature T. Engine B absorbs half of the heat rejected by Engine A and rejects heat to the sink at T3T_{3}. When workdone in both the cases is equal, the value of TT is:

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  5. Question 5

    Dual Nature of Radiation and Matter. Asked once: 6 Apr 2023 (same type asked 3 times) See all 3 of this type

    97
    The work functions of Aluminium and Gold are 4.1eV4.1eV and 5.1eV5.1eV respectively. The ratio of the slope of the stopping potential versus frequency plot for Gold to that of Aluminium is

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