Question on: WAEC Physics - 1991
The sound from a bell in an enclosed jar gradually faints away while the jar is being evacuated. Which of the following explains this observation?
A
the pressue is reduced
B
the sound waves are pumped out
C
the waves are absorbed in the inner walls
D
There is no more material medium
Ask EduPadi AI for a detailed answer
Correct Option: D
Add your answer
Please share this, thanks!
No responses