Q511
To produce sound it is necessary that
A.
the source should execute longitudinal vibrations
B.
the source should execute transverse vibrations
C.
the source may execute any type of vibrations
AnswerD.
the vibrations of source are not necessary
Answer: Option C
Solution
Answer: Option C
Solution:
To produce sound it is necessary that the source may execute any type of vibrations. Sound requires material medium for its propagation. It is produced when a body vibrates. The vibrations produced at a point are transmitted in the medium (air) from one point to the next and so on in the form of mechanical waves which produce compressions and rarefactions in air.