Physics
The correct statement is:
- Sound and light both require medium for propagation
- Sound can travel in vacuum, but light cannot
- Sound needs medium, but light does not need medium for it's propagation
- Sound and light both can travel in vacuum
Sound
46 Likes
Answer
Sound needs medium, but light does not need medium for it's propagation
Reason — Sound waves are mechanical waves. So, they require a medium, such as air, water, or solids, to travel through. In contrast, light waves are electromagnetic waves that can propagate through vacuum as well as various mediums. Light does not depend on a material medium for its transmission and can travel through empty space.
Answered By
23 Likes
Related Questions
The waves carry …………… energy of the vibrating particles with them so as to produce a sensation of hearing in our ears.
- light
- mechanical
- chemical
- nuclear
Identify the correct statements :
(i) A material medium is necessary for the propagation of sound from one place to another.
(ii) The medium must have inertia.
(iii) The medium must be inelastic.
(iv) The medium must be frictionless.
- (i) and (ii)
- (i), (ii) and (iii)
- (i), (ii) and (iv)
- (ii), (iii) and (iv)
Sound in air propagates in form of:
- Longitudinal wave
- Transverse wave
- Both longitudinal and transverse wave
- Neither longitudinal nor transverse wave
The S.I. unit of wavelength is :
- metre
- hertz
- second
- m/s