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Two astronauts on the surface of the moo...

Two astronauts on the surface of the moon cannot talk to each other why?

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Sound waves require material medium for their propagation. As there is no atmosphere on the moon, hence the sound wave cannot propagate on the moon.
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Assertion & Reason : Direction : Mark the correct choice as : Assertion : Two persons on the surface of moon cannot talk to each other. Reason : There is no atmosphere on moon.

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