Is it true that if two astronauts are floating close to each other in space, they can talk to each other without any special device?

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True

False

answer is B.

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Detailed Solution

The above statement is False.
Sound can travel to your ears by vibrating air molecules on the earth. In deep space, the large empty areas between stars and planets, no molecules are present to vibrate. Therefore, there is no sound there. There is no air in space, and we can also say it is a vacuum. Sound waves cannot travel through a vacuum. It needs a medium to travel. Here, if two astronauts are floating close in space, they cannot talk to each other without any special device because sound cannot travel through the vacuum.
The correct statement would be two astronauts floating close in space; they can not talk to each other.

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