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प्रश्न
Name the type of waves which are used by astronauts to communicate with one another on moon (or in outer space).
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उत्तर
Radio waves are used by astronauts to communicate with one another on moon because radio waves do not require any material medium for its propagation.
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संबंधित प्रश्न
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(b) in which medium sound travels fastest?
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State three characteristics of the medium required for propagation of sound?
Does the speed of sound in a gas depend on the pressure of the gas?
Sound cannot travel in ______.
In any medium, as the ______ increases, the speed of sound also increases.
