Multiple choice

Which of the following is the reason that we are not able to see vibrations produced by an object, most of the time?

  1. <font size="2">A</font>mplitude of vibrations is very small.

  2. <font size="2">A</font>mplitude of vibrations is very large.

  3. <font size="2">F</font>requency of vibrations is very large.

  4. <font size="2">F</font>requency of vibrations is very small.
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A Correct answer
Explanation

Most vibrations produced by everyday objects have extremely small amplitudes that are invisible to the naked eye. Only vibrations with large enough displacements (like a plucked guitar string) can be seen.

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