In a sonometer experiment. it is found that when a tuning fork struck against a rubber pad is held close to the sonometer wire without touching the board, the vibration in the air is not noticeable. However, if the stem of the tuning fork is pressed against the board, the vibration of the stem is quite distinct. Explain why?
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In a sonometer experiment. it is found that when a tuning fork struck against a rubber pad is held close to the sonometer wire without touching the board, the vibration in the air is not noticeable. However, if the stem of the tuning fork is pressed against the board, the vibration of the stem is quite distinct. Explain why?
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