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Question

When the stem of a vibrating tuning fork is pressed a sounding board, then

A
transverse vibrations are communicated through stem to the board.
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B
longitudinal vibrations are communicated through stem to the board
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C
both longitudinal and transverse vibrations are communicated through stem on the board
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D
none of the above
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Solution

The correct option is D longitudinal vibrations are communicated through stem to the board
When the tuning fork is set into vibration, the stem of tuning fork vibrate up and down with longitudinal vibrations hence, when the stem of a vibrating tuning fork is pressed a sounding board, then longitudinal vibrations are communicated through stem to the board.

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