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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).
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
Cite an experiment to show that sound needs a material medium for its propagation.
Fill in the blank.
Sound requires a ________ for propagation.
Fill in the blank with suitable word.
Sound cannot travel through ____________.
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Sound in air propagates in form of
Can sound propagate in solids and liquids?
Name the Sound of the Frequency Given Below:
45 kHz
When we hear a sound, does any part of our body vibrate? Name the part.
