Question

A vibrating tuning fork is first held in the hand and then its end is broght in contact with a table. Which of the following statement (s) is are correct in respect of this situation?
A. The sound is louder when the tuning fork is held in hand
B. The sound is louder when the tuning fork is in contact with table.
C. The sound dies away sooner when tuning fork is brought in contact with the table.
D. The sound remains for a longer duration when turning fork is held in hand.

Answer 1

Correct Answer - B::C::D
When the vibrating tuning fork is brought in contact with the table, the vobration of the tuning fork are being transmitted to the surface of table whose surface area is very large as compared to the surface area of tuning fork and hence sound becomes louder and due to the energy transmitted over the table, the sound dies sooner.