PYQ Vault
EbooksTutor

Day 48: JEE Mains Physics

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

  1. Question 1

    Motion in a Straight Line. This type asked 4 times: 25 Jul 2022, 1 Feb 2023, 4 Apr 2024, 9 Apr 2024. This one: 9 Apr 2024 See all 4 of this type

    97
    Two cars are travelling towards each other at speed of 20 m s−120\text{ }m{\text{ }s}^{- 1} each. When the cars are 300 m300\text{ }m apart, both the drivers apply brakes and the cars retard at the rate of 2 m s−22\text{ }m{\text{ }s}^{- 2}. The distance between them when they come to rest is:

    Tap an option to check your answer.

  2. Question 2

    Oscillations. This type asked 4 times: 24 Jan 2023, 30 Jan 2023, 1 Feb 2024, 9 Apr 2024. This one: 9 Apr 2024 See all 4 of this type

    112
    A particle of mass 0.50 kg0.50\text{ }kg executes simple harmonic motion under force F=−50(Nm−1)xF = - 50\left( Nm^{- 1} \right)x. The time period of oscillation is x35 s\frac{x}{35}\text{ }s. The value of xx is_______ (Given π=227\pi=\frac{22}{7} )

  3. Question 3

    Thermodynamics. This type asked 4 times: 26 Jul 2022, 10 Apr 2023, 13 Apr 2023, 9 Apr 2024. This one: 9 Apr 2024 See all 4 of this type

    10
    The volume of an ideal gas (γ=1.5)(\gamma= 1.5) is changed adiabatically from 5 litres to 4 litres. The ratio of initial pressure to final pressure is:

    Tap an option to check your answer.

  4. Question 4

    Units and Measurements. This type asked 4 times: 26 Jun 2022, 27 Jun 2022, 1 Feb 2024, 9 Apr 2024. This one: 9 Apr 2024 See all 4 of this type

    100
    The de-Broglie wavelength associated with a particle of mass mm and energy EE is h/2mEh/\sqrt{2mE}. The dimensional formula for Planck's constant is :

    Tap an option to check your answer.

  5. Question 5

    Alternating Current. This type asked 4 times: 25 Jul 2022, 6 Apr 2023, 5 Apr 2024, 8 Apr 2024. This one: 8 Apr 2024 See all 4 of this type

    115
    An alternating emf E=1102E = 110\sqrt{2} sin 100t100t volt is applied to a capacitor of 2μF2\mu F, the rms value of current in the circuit is ____\_\_\_\_ mAmA.