Physics > 2010 > 25
JAMB UTME
The sound of an electric bell dies down slowly when air is slowly pumped out from a bottle because
A.
sound cannot pass through the bottle
B.
sound can pass through a vacuum
C.
sound needs a material medium
D.
the wavelength of sound becomes greater in the bottle
Answer: C
To see detailed solution to this question and thousands of other questions offline, download TestDriller UTME. Practice rigorously for UTME, enjoy educational games, summary of JAMB literature books, compete with your peers, win prizes and more.
09037778195