Question

Suppose a stick is struck against a frying pan in vacuum. Which of the following is/are true?

• A. the frying pan vibrate
• B. we be able to hear the sound
• C. we can hear the sound just for few minutes
• D. None of the above

Answer 1

The correct option is A the frying pan vibrate

Sounds are made by vibrations. Some vibrations are easy to see.
In this case, a stick is struck against a frying pan in vacuum. The frying pan vibrates. But this happens in vacuum. Sound waves require a medium to travel through. Outer space is a vacuum, and therefore it is not heard.
Hence, the sound created by the stick and frying pan is not heard.