ICSE Class 10 Physics 2015 Solved Paper

In the diagram below, $A, B, C, D$ are four pendulums suspended from the same elastic string $P Q$ . The length of $A$ and $C$ are equal to each other while the length of pendulum $B$ is smaller than that of $D$ . Pendulum A is set into a mode of vibrations.

Question : 51 of 74

Marks: +1, -0

What is the state of pendulum

C

Solution:

Since the length of pendulum

{\C}

is same as that of

{\A}

therefore it is in the state of resonance.

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