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a-particles are projected towards the fo...

a-particles are projected towards the following metals, with the same kinetic enegry. Towards which metal, the distance of closest approach is minimum?

A

`Cu(Z = 29)`

B

`Ag (Z = 47)`

C

`Au (Z = 79)`

D

`Ca(Z = 20)`

Text Solution

Verified by Experts

The correct Answer is:
D
`(Kze^(2))/(r_(0)) =(1)/(2)mV^(2)`
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