Question

the sitar string vibrates at 300Hz.What is the time period of this vibration?
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Answer 1

Correct option is C)

Frequency of oscillation of string in n

th

harmonic is

2l

nc

.

where c is the speed of the wave in the string.

Since the string vibrates in 4 segments, n=4

400=

2l

4c

⟹

2l

c

=100

Fundamental frequency f

1

=

2l

1×c

=100Hz

Answer 2

Answer:

1:1.41

this is the time period of the vibration