Lessons

Eamcet Physics
1 st Year : Unit 10.4 ( Oscillations And Waves ) - Wave Motions

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Q.

A metal wire of linear mass density of 9.8 g/m is stretched with a tension of 10 kg weight between two rigid supports 1 metre apart. The wire passes at its middle point between the poles of a permanent magnet, and it vibrates in resonance when carrying an alternating current of frequency n. The frequency n of the alternating source is

View Answer

Correct choice: B

Explanation:

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