A load of 20 kg is suspended by a steel wire as shown in figure-6.109. Velocity of wave when rubbed with a resined cloth along the length is 20 times the velocity of the wave in the same string when it is plucked. Find the area of cross - section of the wire if Y for streel is 19.6 xx 10^(10) N//m^(2) and g = 9.8 m//s^(2)

A load of 20 kg is suspended by a steel wire as shown in figure-6.109.

1.	A load of 20 kg is suspended by a steel wire as shown in figure-6.109. Velocity of wave when rubbed with a resined cloth along the length is 20 times the velocity of the wave in the same string when it is plucked. Find the area of cross - section of the wire if Y for streel is 19.6 xx 10^(10) N//m^(2) and g = 9.8 m//s^(2)
Answer» ANSWER :B::C::D

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