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In the figure shown string AB and BC have masses m and 2m respectively. Both are of same length l. Mass of each string is uniformly distributed on its length. The string is suspended vertically from the ceiling of a room. A small jerk wave pulse is given at the end ′C′. It goes up to upper end ′A′ in time ′t′. If m=2 kg, l=96101681 m, g=10 m/s2, √2=1.4, √3=1.7, then the value of ′t′ (in seconds) is |
Answer» In the figure shown string AB and BC have masses m and 2m respectively. Both are of same length l. Mass of each string is uniformly distributed on its length. The string is suspended vertically from the ceiling of a room. A small jerk wave pulse is given at the end ′C′. It goes up to upper end ′A′ in time ′t′. If m=2 kg, l=96101681 m, g=10 m/s2, √2=1.4, √3=1.7, then the value of ′t′ (in seconds) is  |
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