In some cases we cannot see vibration why it is so?

1.	In some cases we cannot see vibration why it is so?
Answer» In some cases we cannot see vibration it is because we know that sound is a mechanical energy BABE PRODUCING by the vibrating object it is a form of energy and energy can be visible to us this is why we can't see sound as WELL as vibration MADE by it

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In some cases we cannot see vibration why it is so?

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