Question

Two oscillators are started simultaneously in same phase.
After 50 oscillations of one, they get out of phase by p, that
is half oscillation. The percentage difference of frequencies
of the two oscillators is nearest to
(a) 2% (b) 1%
(c) 0.5% (d) 0.25%

Answer 1

Answer:

1%

Explanation:

The two oscillators starts simultaneously in same phase, but after every 50 oscillations they get out of phase or half oscillation.

Thus after 100 oscillations, the phase difference between the oscillators is equal to  2π   i.e  after  100 oscillations the two oscillators differ by  1 oscillation.

Hence percentage difference in frequencies is equal to  1%.

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