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When a gold sheet is bombarded by a beam...

When a gold sheet is bombarded by a beam of `alpha`- particle , only a few of them get deflected whereas most go straight , undeflected . This is because:

A

The force of attraction exerted on the `alpha` - particle by the oppositely charged electrons is not sufficient .

B

A nucleus has much smaller volume than that of atom .

C

The force of repulsion acting on the fast moving `alpha`-particle is very small.

D

The neutrons in the nucleus do not have any effect on the `alpha` - particles.

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Verified by Experts

The correct Answer is:
B
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