Home
Class 9
PHYSICS
Assertion : The speed of soun in solids ...

Assertion : The speed of soun in solids is maximum though density is large.
Reason : The coefficient of elasticity of solid is large.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
A
The velocity of sound in solid is given by, `v = sqrt(E// rho)`. Though `rho` is large for solids, but their coefficient of elasticity E is much larger (compared to that of liquids and gases). That is why `v` is maximum in case of solid.
Promotional Banner

Topper's Solved these Questions

  • SOUND

    MTG IIT JEE FOUNDATION|Exercise Exercise (Comprehension Type)|9 Videos

  • SOUND

    MTG IIT JEE FOUNDATION|Exercise Exercise (Subjective Problems) Very Short Answer Type|15 Videos

  • SOUND

    MTG IIT JEE FOUNDATION|Exercise Exercise (Match the Following)|4 Videos

  • MOTION

    MTG IIT JEE FOUNDATION|Exercise Olympiad/HOTS Corner|21 Videos

  • THRUST AND PRESSURE

    MTG IIT JEE FOUNDATION|Exercise Olympiad/HOTS Corner|15 Videos

Similar Questions

Explore conceptually related problems

Explain elastic behaviour of solids.

Assertion : When a solid iron ball is heated, percentage increase is its volume is largest. Reason : Coefficient of superficial expansion is twice that of linear expansion where as coefficient of volume expansion is three time of linear expansion.

Elastic Behaviour Of Solids

Assertion (A) : The active mass of pure solid and pure liquid is taken unity. Reason (R) : The active mass of pure solids and liquids depends on the density and molecular mass. The density and molecular of a mass of pure liquids and solids are constant.

For a solid with a small expansion coefficient,

Assertion : The entropy of the solids is the highest Reason : Atoms of the solids are arranged in orderly manner.

Assertion : In Frenkel defect, density of the crystalline solid does not change. Reason : In Frenkel defect, no cation or anion leaves the crystal.