Question

two astronauts are floating close to each other in space can they talk to each other without using any special device give reason

Answer 1

No they cannot talk to each other without using any special device because to talk they need to produce sound and sound needs a medium to propagate and in space we don't have air so it will not reach to 2nd astronaut's ear.



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Answer 2

No they cannot as sound needs medium to travel and space have no medium of air, liquid or solid.... therefore they cannot talk