Wave Motion questions with solutions

Showing 1–10 of 253 questions

• MCQmediumWave Motionstationary wave in sound and organ pipe ,resonance tube

  In a resonance experiment, two air columns closed at one end have lengths 100 cm and 120 cm. Their fundamental frequencies produce 15 beats per second. The velocity of sound is:

  Options

  • Option A

    340 m/s

  • Option B

    335 m/s

  • Option C

    370 m/s

  • Option D

    360 m/s

  Check answerShow answer

  JEE Mains 2025 3 April Evening Shift

  Open question & full solution →
• MCQmediumWave Motionsound wave and its general equation and velocity

  The speed of a longitudinal wave in a metallic bar is 400 m/s. If the density and Young's modulus of the bar material are increased by 0.5% and 1% respectively then the speed of the wave is changed approximately to _____ m/s.

  Options

  • Option A

    399

  • Option B

    398

  • Option C

    402

  • Option D

    401

  Check answerShow answer

  JEE Mains 202628 January Evening Shift

  Open question & full solution →
• MCQeasyWave Motionsound wave and its general equation and velocity

  A point source is kept at the center of a spherically enclosed detector. If the volume of the detector increased by 8 times, the intensity will

  Options

  • Option A

    increase by 8 times

  • Option B

    increase by 64 times

  • Option C

    decrease by 8 times

  • Option D

    decrease by 4 times

  Check answerShow answer

  JEE Mains 202624 January Evening Shift

  Open question & full solution →
• MCQmediumWave Motionsound wave

  Newton originally obtained the speed of sound in a gas as vₙ = √(P/ρ). Which physical assumption about the compressions and rarefactions led to this result?

  Options

  • Option A

    The compressions and rarefactions were assumed to be adiabatic.

  • Option B

    The compressions and rarefactions were assumed to be isothermal.

  • Option C

    The gas pressure was assumed to remain zero.

  • Option D

    The gas density was assumed to remain exactly constant.

  Check answerShow answer

  JEE MainsNEETJEE Advanced

  Open question & full solution →
• MCQmediumWave Motionreflection ,refraction of string wave and superposition of wave

  Two coherent sinusoidal waves of intensities I₁ and I₂ superpose at a point with phase difference φ. Which expression gives the resultant intensity?

  Options

  • Option A

    I = I₁+I₂

  • Option B

    I = I₁+I₂+2√(I₁I₂) cosφ

  • Option C

    I = √(I₁²+I₂²)

  • Option D

    I = (I₁+I₂) cosφ

  Check answerShow answer

  JEE MainsNEETJEE Advanced

  Open question & full solution →
• A/RmediumWave Motionsound wave

  Choose the correct option for the following Assertion (A) and Reason (R).

  Assertion

  Pressure variation and density variation in a progressive sound wave are in phase.

  Reason

  For a small-amplitude sound wave, Δp = v²Δρ.

  Options

  • Option A

    Both A and R are true and R is the correct explanation of A.

  • Option B

    Both A and R are true but R is NOT the correct explanation of A.

  • Option C

    A is true but R is false.

  • Option D

    A is false but R is true.

  Check answerShow answer

  JEE MainsNEETJEE Advanced

  Open question & full solution →
• IntegereasyWave Motiongeneral equation of wave

  A transverse wave on a string is described by y = 3 sin(36t+0.018x+π/4), where x and y are measured in centimetres and t in seconds. Taking π = 3.14, find the least distance between two successive crests in centimetres, to the nearest integer.

  Your answer

  Check answerShow answer

  JEE Mains 2026 5 April Morning Shift

  Open question & full solution →
• NumericeasyWave Motionquestion based on string wave

  A transverse wave travels along a string with speed 40 m/s. The string has linear mass density 0.025 kg/m. If the tension in the string is N newtons, find N.

  Your answer

  Check answerShow answer

  JEE MainsNEETJEE Advanced

  Open question & full solution →
• IntegereasyWave Motionbeat and properties of sound like loudness,pitch

  Two tuning forks A and B are sounded together giving rise to 8 beats in 2 s. When fork A is loaded with wax, the beat frequency is reduced to 4 beats in 2 s. If the original frequency of tuning fork B is 380 Hz, then the original frequency of tuning fork A is ______ Hz.

  Your answer

  Check answerShow answer

  JEE Mains 202628 January Evening Shift

  Open question & full solution →
• NumericeasyWave Motionsound wave and its general equation and velocity

  The velocity of sound in air is doubled when the temperature is raised from 0°C to α°C. The value of α is _______.

  Your answer

  Check answerShow answer

  JEE Mains 202623 January Evening Shift

  Open question & full solution →