Question

# If fundamental frequency is 50 Hz and next succesive frequencies are 150 Hz and 250 Hz, then which of the following options correctly represents the state of the string?

A
String fixed at both end
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B
String fixed at one end & free at other
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C
String may be fixed at one end as well as at both ends
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D
None of the above
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Solution

## The correct option is B String fixed at one end & free at otherWe know that in case of sting fixed at one end and free at other end. f=(n+12)V2L So, frequencies of vibration are fo, 3fo, 5fo, ......... Where fo=V4L is fundamental frequency. ∴ Option (b) is correct.

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