Questions
Fundamental frequency of sonometer wire is n. If the length, tension and diameter of wire are tripled, the new fundamental frequency is
detailed solution
Correct option is D
n=12lTπr2ρ⇒n∝Tlr⇒n1n2=T1T2×l2l1×r2r1=T3T×3ll×2rr=33⇒n2=n33Talk to our academic expert!
Similar Questions
A wire having a linear density of 5 g/m is stretched between two rigid supports with a tension of 450 N. It is observed that the wire resonates at a frequency of 420 Hz. The next highest frequency at which the same wire resonates is 490 Hz. Find the length of the wire. (in m)
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