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Question
A tuning fork has two prongs because:
A tuning fork has two prongs because:
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Solution
The correct options are
A A balanced motion is possible
B Energy of the oscillation can be transferred effectively
If there were only one prong (imagine holding a metal rod in your hand), then the oscillation energy of the prong would quickly be dissipated by its contact with your hand. On the other hand, a fork with two prongs oscillates in such a way that the point of contact with your hand does not move much due to the oscillation of the fork. This causes the oscillations to be safe from damping due to contact with your hand, so they continue for a longer period of time.
The correct options are A and B.
A A balanced motion is possible
B Energy of the oscillation can be transferred effectively
If there were only one prong (imagine holding a metal rod in your hand), then the oscillation energy of the prong would quickly be dissipated by its contact with your hand. On the other hand, a fork with two prongs oscillates in such a way that the point of contact with your hand does not move much due to the oscillation of the fork. This causes the oscillations to be safe from damping due to contact with your hand, so they continue for a longer period of time.
The correct options are A and B.
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