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A proton, a ceuteron and an ac-particle ...

A proton, a ceuteron and an ac-particle accelerated through the same potential difference enter a region of uniform magnetic field, moving at right angles to B. What is the ratio of their K.E.?

A

`2:1:1`

B

`2:2:1`

C

`1:2:1`

D

`1:1:2`

Text Solution

Verified by Experts

The correct Answer is:
D
K.E. gained by charged particles of charge q when accelerated under a potential difference V will be K = qV. For a given V,K`prop`q
For protone deuteron and `alpha`-particles, the ratio of charge is `1:1:2`,
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