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An alpha - particle with a specific char...

An `alpha` - particle with a specific charge of `2.5xx10^7 Ckg^(-1)` moves with a speed of `2xx10^5 ms ^(-1)` in a perpendicular magnetic field of `0.05 T.` Then , the radius of the circular path described by it is

A

8 cm

B

4 cm

C

16 cm

D

2 cm

Text Solution

Verified by Experts

The correct Answer is:
C
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