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प्रश्न
The correct statement is :
विकल्प
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
Choose the correct word/words to complete the following sentence :
When sound travels in a medium ____________
What is a longitudinal wave? In which medium: solid, liquid or gas, can it be produced?
How does the following factor affect, if at all, the speed of sound in air:
Frequency of sound
Why do astronauts talk to each other through radio telephone in space?
Define the term wavelength.
What is meant by the term wave motion?
Compare approximately the speed of sound in air and steel.
Describe in brief, with the aid of a sketch diagram, an experiment to demonstrate that a material medium is necessary to transmit sound.
How will the following factors affect the speed of sound in air:
Pressure of air.
State three important uses of echolocation.
