Question

Suppose a stick is struck against a frying pan in vacuum. Willthe frying pan vibrate? Will we be able to hear the sound? Explain.NCERT Class VIIIScience - Exemplar ProblemsChapter 13. Sound

Answer 1

when you strike it, it will vibrate.
But you can't hear the sound because sound needs a medium to vibrate. Since there is no air in vacuum, you can't hear the sound.

But if you keep your ear on the vibrating frying pan, you can hear the sound. The sound will reach your ear through the vibrating frying pan as the frying pan is a solid medium and sound can travel in it.

Answer 2

if u strike the stick in the frying pan,it will vibrate,but we cannot hear the sound i vacuum because the vacuum doesn't contain air. in solid metal it can be hear the sound .