1.

A streched string fixed at both ends has n nodes then the length of string in terms of wavelength is :

Answer»

`n (lambda)/(2)`
`(n + 1) (lambda)/(2)`
`(n - 1) (lambda)/(2)`
`(n + (1)/(2) )(lambda)/(2)`

SOLUTION :With n nodes (n - 1) LOOPS are formed .
`THEREFORE ` Length of STRING = ( n - 1) `(lambda)/(2)`
Hence CORRECT choice is (c).


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