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प्रश्न
A tuning fork of frequency 480 Hz is used to vibrate a sonometer wire having natural frequency 240 Hz. The wire will vibrate with a frequency of
विकल्प
240 Hz
480 Hz
720 Hz
will not vibrate.
उत्तर
480 Hz
The frequency of vibration of a sonometer wire is the same as that of a fork. If this happens to be natural frequency of the wire, then standing waves with large amplitude are set up in it.
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