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Which of the following is smallest unit?...

Which of the following is smallest unit?

A

micrometer

B

nanometer

C

picometer

D

centimeter

Text Solution

Verified by Experts

The correct Answer is:
B
Energy at surface = Energy at centre
`1/2 m u^(2)+(Kqxxq)/R=3/2 (Kq)/(R)xxq+0`
`:. U=q/sqrt(4pi in_(0)mR)`
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