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प्रश्न
The correct statement is :
पर्याय
Sound and light both require medium for propagation.
Sound can travel in vacuum, but light can not
Sound needs medium, but light does not need medium for its propagation.
Sound and light both can travel in vacuum.
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उत्तर
The correct statement is : Sound needs medium, but light does not need medium for its propagation.
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संबंधित प्रश्न
Name the two kinds of waves in form of which sound travels in a medium.
What is a longitudinal wave? In which medium: solid, liquid or gas, can it be produced?
Describe an experiment to show that in wave motion, only energy is transferred, but particles of medium do not move.
If you place your ear close to an iron railing which is tapped some distance away, you hear the sound twice. Explain why?
Complete the following sentence :
A longitudinal wave is composed of compression and ____________.
State four differences between the sound wave and the light wave.
Compare approximately the speed of sound in air and steel.
How will the following factors affect the speed of sound in air:
Temperature of air.
How will the following factors affect the speed of sound in air:
Wind.
State three important uses of echolocation.
