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Why do astronauts talk to each other through radio telephone in space? - Physics

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Question

Why do astronauts talk to each other through radio telephone in space?

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Solution

Sound can not travel through vacuum. There is no material medium in the space for propagation of sound. Hence astronauts talk to each other through radio telephone in space. In radio telephone, message of one astronauts reach to the other with the help of radio waves, which can travel through vacuum.

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Chapter 9: Sound - Exercise (B) Subjective Questions

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Goyal Brothers Prakashan A New Approach to ICSE Physics Part 1 [English] Class 9
Chapter 9 Sound
Exercise (B) Subjective Questions | Q 9
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