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Two simple pendula x and y make 400 and 500 oscillations res...

Two simple pendula x and y make 400 and 500 oscillations respectively in equal time. If the period of oscillation of x is 1.5 seconds, what is the period of oscillation of y?

A.

0.53s

B.

0.83s

C.

1.20s

D.

1.50s

E.

1.88s

Correct answer is C

where f = oscillationstime

period = 1/ f or timeoscillations

For pendulum x:

where period = 1.5 and oscillation = 400

time = oscillations X 1.5 = 600s

For pendulum y:

timeoscillations → 600/500

period for y = 1.2s

period =