JEE Mains 2024 08 Apr Morning Shift physics questions with solutions

Showing 1–10 of 30 questions

• MCQmediumThermodyanmicscyclic process its effeciency ,second law of thermodynamics

  Two different adiabatic paths for the same gas intersect two isothermal curves as shown in P-V diagram. The relation between the ratio Vₐ/Vd and the ratio Vᵦ/Vc is:

  

  Options

  • Option A

    Vₐ/Vd = (Vᵦ/Vc)⁻¹

  • Option B

    Vₐ/Vd ≠ Vᵦ/Vc

  • Option C

    Vₐ/Vd = Vᵦ/Vc

  • Option D

    Vₐ/Vd = (Vᵦ/Vc)²

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• MCQmediumPhotoelectric effect and dual nature of matterquestion based on photoelectric effect

  Average force exerted on a non-reflecting surface at normal incidence is 2.4 × 10⁻⁴ N. If 360 W/cm² is the light energy flux during span of 1 hour 30 minutes. Then the area of the surface is:

  Options

  • Option A

    0.2 m²

  • Option B

    0.02 m²

  • Option C

    20 m²

  • Option D

    0.1 m²

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• MCQmediumCenter of maas , Momentum and Collisionmomentum and conservation of momentum

  A stationary particle breaks into two parts of masses mₐ and mᵦ which move with velocities vₐ and vᵦ respectively. The ratio of their kinetic energies (Kᵦ : Kₐ) is :

  Options

  • Option A

    vᵦ : vₐ

  • Option B

    mᵦ : mₐ

  • Option C

    mᵦvᵦ : mₐvₐ

  • Option D

    1 : 1

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• MCQeasyCurrent electricitycircuit theory

  In the given circuit, the terminal potential difference of the cell is :

  

  Options

  • Option A

    2 V

  • Option B

    4 V

  • Option C

    1.5 V

  • Option D

    3 V

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• MCQeasyPhotoelectric effect and dual nature of matterdebroglie duel nature of light

  A proton and an electron are associated with same de-Broglie wavelength. The ratio of their kinetic energies is: (Assume h = 6.63 × 10⁻³⁴ J s, mₑ = 9.0 × 10⁻³¹ kg and mₚ = 1836 times mₑ)

  Options

  • Option A

    1 : 1836

  • Option B

    1 : 1/1836

  • Option C

    1 : 1/√1836

  • Option D

    1 : √1836

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• MCQeasyElectrostaticsconductor and its properties

  Two charged conducting spheres of radii a and b are connected to each other by a conducting wire. The ratio of charges of the two spheres respectively is:

  Options

  • Option A

    √(ab)

  • Option B

    ab

  • Option C

    a/b

  • Option D

    b/a

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• MCQeasyGeometrical opticslaw of refraction and total internal reflection

  Critical angle of incidence for a pair of optical media is 45°. The refractive indices of first and second media are in the ratio:

  Options

  • Option A

    √2 : 1

  • Option B

    1 : 2

  • Option C

    1 : √2

  • Option D

    2 : 1

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• MCQeasyUnit dimension and errorsignificant number

  In an expression a × 10ᵇ:

  Options

  • Option A

    a is order of magnitude for b ≤ 5

  • Option B

    b is order of magnitude for a ≤ 5

  • Option C

    b is order of magnitude for 5 < a ≤ 10

  • Option D

    b is order of magnitude for a ≥ 5

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• MCQeasyNewtons law of motion and Frictionnewton second law and problem based on it

  A player caught a cricket ball of mass 150 g moving at a speed of 20 m/s. If the catching process is completed in 0.1 s, the magnitude of force exerted by the ball on the hand of the player is:

  Options

  • Option A

    150 N

  • Option B

    3 N

  • Option C

    30 N

  • Option D

    300 N

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• NumericeasyCurrent electricityelectric current ,current density and resistance

  Resistance of a wire at 0°C, 100°C and t°C is found to be 10 Ω, 10.2 Ω and 10.95 Ω respectively. The temperature t in Kelvin scale is______.

  Your answer

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