Question

A second harmonic has to be generated string of length L stretched between two supports the point where the string has to plucked and touched are

Answer 1

Answer:

To generate the second harmonic is a staring of length stretched between two rigid supports has to plucked at l/4 and touched at l/2

For second harmonic, wavelength (λ

2

) of the standing waves set up on the corresponds to the n=2

Thus, λ

n

=

n

2l

⇒λ

2

=

2

2l

=l

This shows that we have an antinode at l/2

This shows that we have an node at l/4