JEE Mains 2024 06 Apr Morning Shift physics questions with solutions

Showing 1–10 of 30 questions

• MCQmediumUnit dimension and errorDimension and its application

  Match List I with List II

  LIST I
  A. Torque
  B. Magnetic field
  C. Magnetic moment
  D. Permeability of free space

  LIST II I. [MLT⁻²A⁻²] II. [L²A] III. [MT⁻²A⁻¹] IV. [ML²T⁻²]

  Choose the correct answer from the options given below :

  Options

  • Option A

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

  • Option B

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

  • Option C

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

  • Option D

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

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

  The ratio of the shortest wavelength of Balmer series to the shortest wavelength of Lyman series for hydrogen atom is :

  Options

  • Option A

    4 : 1

  • Option B

    1 : 2

  • Option C

    1 : 4

  • Option D

    2 : 1

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• NumericeasyProperties of solid and fluidproperties of fluid and surface tension

  A big drop is formed by coalescing 1000 small droplets of water. The ratio of surface energy of 1000 droplets to that of energy of big drop is 10/x. The value of x is _________.

  Your answer

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• MCQeasyGravitationacceleration due to gravity and escape velocity

  To project a body of mass m from earth's surface to infinity, the required kinetic energy is (assume, the radius of earth is Rₑ, g = acceleration due to gravity on the surface of earth) :

  Options

  • Option A

    2mgRₑ

  • Option B

    mgRₑ

  • Option C

    ½mgRₑ

  • Option D

    4mgRₑ

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• MCQmediumMagnetic effect of currentbiot savart law and magnetic field due to straight conductor ,arc and ring

  An element Δℓ = Δx î is placed at the origin and carries a large current I = 10 A. The magnetic field on the y-axis at a distance of 0.5 m from the element Δx of 1 cm length is :

  

  Options

  • Option A

    4 × 10⁻⁸ T

  • Option B

    8 × 10⁻⁸ T

  • Option C

    12 × 10⁻⁸ T

  • Option D

    10 × 10⁻⁸ T

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• MCQeasyKinematics Part-1 (one dimension)Distance,Displacement ,Avg speed and Avg velocity

  A train starting from rest first accelerates uniformly up to a speed of 80 km/h for time t, then it moves with a constant speed for time 3t. The average speed of the train for this duration of journey will be (in km/h) :

  Options

  • Option A

    80

  • Option B

    70

  • Option C

    30

  • Option D

    40

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• NumericmediumGeometrical opticsprism and thin prism

  The refractive index of prism is μ = √3 and the ratio of the angle of minimum deviation to the angle of prism is one. The value of angle of prism is _________°.

  Your answer

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• MCQmediumsemiconductorlogic gate

  The correct truth table for the following logic circuit is :

  

  Options

  • Option A

    A B Y

    0 0 0

    0 1 1

    1 0 0

    1 1 1

  • Option B

    A B Y

    0 0 1

    0 1 1

    1 0 0

    1 1 1

  • Option C

    A B Y

    0 0 1

    0 1 1

    1 0 0

    1 1 0

  • Option D

    A B Y

    0 0 0

    0 1 0

    1 0 0

    1 1 1

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• MCQeasyElectromagnetic wavedisplacement current and properties of electromagnetic wave

  Electromagnetic waves travel in a medium with speed of 1.5 × 10⁸ m s⁻¹. The relative permeability of the medium is 2.0. The relative permittivity will be :

  Options

  • Option A

    5

  • Option B

    1

  • Option C

    4

  • Option D

    2

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• MCQmediumProperties of solid and fluidviscosity and terminal velocity

  A small ball of mass m and density ρ is dropped in a viscous liquid of density ρ₀. After sometime, the ball falls with constant velocity. The viscous force on the ball is :

  Options

  • Option A

    mg(1 - ρ₀/ρ)

  • Option B

    mg(1 + ρ₀/ρ)

  • Option C

    mg(1 - ρρ₀)

  • Option D

    mg(1 - ρ₀/ρ)

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