Morning Shift physics questions with solutions

Showing 1–10 of 336 questions

• MatcheasyThermodynamicsKinetic Theory of Gases and Molecular Properties

  Match List I with List II:

  List 1

  1. A. 3 translational degrees of freedom

  2. B. 3 translational and 2 rotational degrees of freedom

  3. C. 3 translational, 2 rotational and 1 vibrational degree of freedom

  4. 4. D. 3 translational, 3 rotational and more than one vibrational degree of freedom

  List 2

  1. I. Monoatomic gases

  2. II. Polyatomic gases

  3. III. Rigid diatomic gases

  4. IV. Non-rigid diatomic gases

  Options

  • Option A

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

  • Option B

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

  • Option C

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

  • Option D

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

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  JEE Mains10 April 2023Shift 1Morning Shift

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• MCQeasyThermodynamicsFirst Law of Thermodynamics and Its Applications

  Heat is given to an ideal gas in an isothermal process.
  A. Internal energy of the gas will decrease.
  B. Internal energy of the gas will increase.
  C. Internal energy of the gas will not change.
  D. The gas will do positive work. E. The gas will do negative work. Choose the correct answer from the options given below:

  Options

  • Option A

    A and E only

  • Option B

    B and D only

  • Option C

    C and E only

  • Option D

    C and D only

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  JEE Mains30 January 2023Shift 1Morning Shift

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• MCQmediumKinematics Part-1 (one dimension)Instantaneous speed and instantaneous velocity

  A particle is moving with constant speed in a circular path. When the particle turns by an angle $90^{o}$, the ratio of instantaneous velocity to its average velocity is π: x $\sqrt2$. The value of x will be -

  Options

  • Option A

    7

  • Option B

    2

  • Option C

    1

  • Option D

    5

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  JEE Mains6 April 2023Shift 1Morning Shift

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• MCQeasyKinematics Part-1 (one dimension)Motion under gravity

  A ball is thrown vertically upward with initial speed 150 m s⁻¹. The ratio of its velocities after 3 s and 5 s is (x+1)/x. Find x. Take g = 10 m s⁻².

  Options

  • Option A

    6

  • Option B

    5

  • Option C

    -5

  • Option D

    10

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  JEE Mains12 April 2023Shift 1Morning Shift

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• IntegermediumElectromagnetic InductionMagnetic Flux,Faraday's Laws of Electromagnetic Induction and Lenz's Law

  A magnetic field normal to a square metallic plate of area 4 m² varies linearly as shown. During t = 2 s to 4 s, the field changes from 4 × 10⁻³ T to 8 × 10⁻³ T. The induced emf is ______ mV.

  

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  JEE Mains11 April 2023Shift 1Morning Shift

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• MCQmediumMagnetic effect of currentMagnetic Dipole Moment, Torque and Equilibrium of Current-Carrying Loops

  Given below are two statements:

  Statement I: If the number of turns in the coil of a moving-coil galvanometer is doubled, then the current sensitivity becomes double.

  Statement II: Increasing current sensitivity of a moving-coil galvanometer only by increasing the number of turns in the coil will also increase its voltage sensitivity in the same ratio. Choose the correct answer.

  Options

  • Option A

    Both Statement I and Statement II are true

  • Option B

    Both Statement I and Statement II are false

  • Option C

    Statement I is true but Statement II is false

  • Option D

    Statement I is false but Statement II is true

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  JEE Mains10 April 2023Shift 1Morning Shift

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• MCQeasyElectromagnetic waveDisplacement Current, Maxwell's Equations and Properties of Electromagnetic Waves

  Which of the following are true?
  A. Speed of light in vacuum is dependent on the direction of propagation.
  B. Speed of light in a medium is independent of the wavelength of light.
  C. The speed of light is independent of the motion of the source.
  D. The speed of light in a medium is independent of intensity. Choose the correct answer from the option given below:

  Options

  • Option A

    A and C only

  • Option B

    B and D only

  • Option C

    B and C only

  • Option D

    C and D only

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  JEE Mains29 January 2023Shift 1Morning Shift

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• MCQmediumWave MotionDoppler Effect in Sound Waves and Its Applications

  A person observes two moving trains, A reaching the station and B leaving the station with equal speed of 30 m/s. If both trains emit sounds with frequency 300 Hz, (speed of sound = 330 m/s) approximate difference of frequencies heard by the person will be:

  Options

  • Option A

    33 Hz

  • Option B

    55 Hz

  • Option C

    80 Hz

  • Option D

    10 Hz

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  JEE Mains29 January 2023Shift 1Morning Shift

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• NumericmediumProperties of solid and fluidElastic Properties of Solids: Stress, Strain and Elastic Moduli

  A steel rod has a radius of 20 mm and a length of 2.0 m. A force of 62.8 kN stretches it along its length. Young's modulus of steel is 2.0 × 10¹¹ N m⁻². The longitudinal strain produced in the wire is ______ × 10⁻⁵.

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  JEE Mains6 April 2023Shift 1Morning Shift

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• MCQmediumAC CircuitsSeries AC Circuits: Impedance, Phase Difference, Resonance and Power Factor

  In a series LR circuit with X(L) = R, power factor is P₁. If a capacitor of capacitance C with X(C) = X(L) is added to the circuit the power factor becomes P₂. The ratio P₁ to P₂ will be:

  Options

  • Option A

    1 : √3

  • Option B

    1 : √2

  • Option C

    1 : 1

  • Option D

    1 : 2

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  JEE Mains30 January 2023Shift 1Morning Shift

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