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The turntable of a gramophone is rotated...

The turntable of a gramophone is rotated at a constant speed of x revolutions/minute. Which one of the following values of the revolutions per minute is not used?

A

78 r.p.m.

B

56 r.p.m.

C

45 r.p.m.

D

33 r.p.m.

Text Solution

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The correct Answer is:
b
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