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प्रश्न
The diagram below shows three ways in which the string of an instrument can vibrate.
Which has the frequency four times that of the first?
पर्याय
I
II
III
Nothing can be decided
MCQ
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उत्तर
III
Explanation:
For a stretched string, frequency is proportional to the number of loops or antinodes.
- Pattern I has 1 loop → fundamental frequency \(f\)
- Pattern II has 2 loops → frequency \(2f\)
- Pattern III has 4 loops → frequency \(4f\)
Therefore, pattern III has a frequency four times that of the first.
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