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in Class-XI-PHYSICS by
Q:

A string has a mass of 100gm & is under a tension of 10N. What should be its length if the speed of transverse waves is to be 10m/s on the string.

(a) 1.8m

(b) 10m

(c) 1m

(d) 2m

1 Answer

0 votes
by

The correct answer is (c) 1m

To elaborate: v = √(T/μ),

μ = M/L.

V^2 = TL/M

Or L = v^2M/T

= 100 * 0.1/10

= 1m.

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