The pressure of air increases by `100mm` of Hg and the temperature decreases by `1^(@)C`. The change in the speed of sound in air at STP is `(V_(0)=333m//s)`

Options

A. `61ms^(-1)`
B. `61mms^(-1)`
C. `61cms^(-1)`
D. `0.61cms^(-1)`

Answer

C

Explanation

`V prop sqrt(T)implies(DeltaV)/(V)=(1)/(2)(DeltaT)/(T)`