A proton of mass 1.6 × 10?27 kg goes round in a circular orbit of rad – McqOptions

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1.	A proton of mass 1.6 × 10?27 kg goes round in a circular orbit of radius 0.10 m under a centripetal force of 4 × 10?13 N. then the frequency of revolution of the proton is about [Kerala (Med.) 2002]
A.	0.08 × 108 cycles per sec
B.	4 × 108 cycles per sec
C.	8 × 108 cycles per sec
D.	12 × 108 cycles per sec
Answer» B. 4 × 108 cycles per sec

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