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Day 506: JEE Mains Physics

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

  1. Question 1

    Thermodynamics. Asked once: 9 Apr 2024

    107
    A real gas within a closed chamber at 27∘C27^{\circ}C undergoes the cyclic process as shown in figure. The gas obeys PV3=PV^{3}= RT equation for the path AA to BB. The net work done in the complete cycle is (assuming R=8 J/molKR= 8\text{ }J/molK ):

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  2. Question 2

    Units and Measurements. Asked once: 22 Jan 2025

    81
    Which one of the following is the correct dimensional formula for the capacitance in F? M, L,TL,T and C stand for unit of mass, length, time and charge,

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  3. Question 3

    Wave Optics. Asked once: 2021 Paper 17

    22
    The difference in the number of waves when yellow light propagates through air and vacuum columns of the same thickness is one. The thickness of the air column is ____\_\_\_\_ mmmm. [Refractive index of air =1.0003= 1.0003, wavelength of yellow light in vacuum =6000Å]= 6000\text{Å}\rbrack

  4. Question 4

    Waves. Asked once: 14 Jun 2022

    114
    Two travelling waves of equal amplitudes and equal frequencies move in opposite directions along a string. They interfere to produce a stationary wave whose equation is given by y=(10cos⁡πxsin2πtT)cmy=\left( 10\cos\pi xsin\frac{2\pi t}{T} \right)cm The amplitude of the particle at x=43 cmx=\frac{4}{3}\text{ }cm will be cmcm.

  5. Question 5

    Work, Energy and Power. Asked once: 4 Apr 2024

    101
    A body of mkgmkg slides from rest along the curve of vertical circle from point AA to BB in friction less path. The velocity of the body at B is : (given, R=14 m, g=10 m/s2R = 14\text{ }m,\text{ }g = 10\text{ }m/s^{2} and 2=1.4\sqrt{2}= 1.4 )

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