JEE Mains 2024 05 Apr Evening Shift physics questions with solutions

Showing 1–10 of 30 questions

• MCQmediumThermodyanmicsthermodynmic process and work done

  During an adiabatic process, if the pressure of a gas is found to be proportional to the cube of its absolute temperature, then the ratio of Cₚ/Cᵥ for the gas is :

  Options

  • Option A

    5/3

  • Option B

    9/7

  • Option C

    3/2

  • Option D

    7/5

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• MCQeasyProperties of solid and fluidpropertes of solid stress ,strain and modulus of elasticity

  Match List-I with List-II :

  List-I
  (A) A force that restores an elastic body of unit area to its original state
  (B) Two equal and opposite forces parallel to opposite faces
  (C) Forces perpendicular everywhere to the surface per unit area same everywhere
  (D) Two equal and opposite forces perpendicular to opposite faces

  List-II (I) Bulk modulus (II) Young's modulus (III) Stress (IV) Shear modulus

  Choose the correct answer from the options given below :

  Options

  • Option A

    (A)-(II), (B)-(IV), (C)-(I), (D)-(III)

  • Option B

    (A)-(IV), (B)-(II), (C)-(III), (D)-(I)

  • Option C

    (A)-(III), (B)-(IV), (C)-(I), (D)-(II)

  • Option D

    (A)-(III), (B)-(I), (C)-(II), (D)-(IV)

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• MCQeasyUnit dimension and errorvernier callipers and screw gauge

  A vernier callipers has 20 divisions on the vernier scale, which coincides with 19th division on the main scale. The least count of the instrument is 0.1 mm. One main scale division is equal to ____mm.

  Options

  • Option A

    1

  • Option B

    0.5

  • Option C

    2

  • Option D

    5

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• MCQeasyAc Cirucuitsseries combination of ac circuit and L-C-R circuit

  A series LCR circuit is subjected to an AC signal of 200 V, 50 Hz. If the voltage across the inductor (L = 10 mH) is 31.4 V, then the current in this circuit is ________ :

  Options

  • Option A

    68 A

  • Option B

    63 A

  • Option C

    10 A

  • Option D

    10 mA

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• NumericmediumAtomic Structure and X-raysatomic structure and bohr atomic model

  The shortest wavelength of the spectral lines in the Lyman series of hydrogen spectrum is 915 Å. The longest wavelength of spectral lines in the Balmer series will be _______ Å.

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• NumericmediumElectrostaticselectric dipole and dipole moment

  The electric field at point p due to an electric dipole is E. The electric field at point R on equitorial line will be E/x. The value of x : Image

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• NumericeasyElectromagnetic Inductionself induction and L-R circuit

  The current in an inductor is given by I = (3t + 8) where t is in second. The magnitude of induced emf produced in the inductor is 12 mV. The self-inductance of the inductor _______ mH.

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• NumericeasyCurrent electricityequivalent resistance

  A wire of resistance 20 Ω is divided into 10 equal parts. A combination of two parts are connected in parallel and so on. Now resulting pairs of parallel combination are connected in series. The equivalent resistance of final combination is _______ Ω.

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• MCQmediumCurrent electricityelectric instruments

  A galvanometer of resistance 100 Ω when connected in series with 400 Ω measures a voltage of upto 10 V. The value of resistance required to convert the galvanometer into ammeter to read upto 10 A is x × 10⁻² Ω. The value of x is :

  Options

  • Option A

    2

  • Option B

    800

  • Option C

    20

  • Option D

    200

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• MCQmediumAtomic Structure and X-raysatomic structure and bohr atomic model

  The angular momentum of an electron in a hydrogen atom is proportional to : (Where r is the radius of orbit of electron)

  Options

  • Option A

    √r

  • Option B

    1/r

  • Option C

    r

  • Option D

    1/√r

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