Question

# The frequency (n) of vibration of a string is given as n=12l√Tm, where T is tension and l is the length of vibrating string. Then, the magnitude of summation of powers of M and L in the dimensional formula of m is

Solution

## n=12l√Tm⇒n2=14l2Tm m=T4l2n2=[MLT−2L2×T−2]=[ML−1]

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