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Which pattern in Fig. shows a soft (not loud) note?

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Question

Which pattern in Fig. shows a soft (not loud) note?


  1.  The image shows a transverse wave oscillating about its mean position, indicated by the dashed horizontal line.

  2. The image shows one complete transverse wave cycle oscillating about its mean position, indicated by the dashed horizontal line. 

  3.  The image shows an irregular transverse wave oscillating about its mean position, indicated by the dashed horizontal line.

  4. The image shows an irregular wave with varying amplitude, oscillating about the mean position shown by the dashed horizontal line.

Options

  • I

  • II

  • III

  • IV

MCQ
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Solution

II

Explanation:

Loudness depends mainly on the amplitude of the wave. Pattern I has the smallest amplitude, so it represents a soft (not loud) note. Patterns II and IV have larger amplitudes, while III has an irregular varying amplitude.

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Chapter 3: Sound - Multiple Choice Questions and Assertion-Reason Type Questions [Page 214]

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Frank Physics Part 2 [English] Class 10 ICSE
Chapter 3 Sound
Multiple Choice Questions and Assertion-Reason Type Questions | Q 22. | Page 214
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