If the speed of sound wave in a stretched string is V and Hook law is obeyed, then the exenion in the string if the speed of sound wave will become 1.22v.
A
1.5x
B
1x
C
0.5x
D
2x
Text Solution
Verified by Experts
The correct Answer is:
A
`T propx` So, `" "T' propx'` `vsqrt(((T)/(m))),v'=sqrt(((T')/(m)))` `(v')/v=sqrt(((T')/(T)))rArrsqrt(((x')/(x)))=(122)/vrArrx'-= 1.5x`
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