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Question

A proton and a deuteron, accelerated through same potential difference enters in a region of uniform magnetic field with their velocities perpendicular to the magnetic field. The ratio of proton to the deuteron is

A
1:1
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B
1:2
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C
1:2
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D
1:4
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Solution

The correct option is B 1:1

Solution:

As we know that the energy gained by charged particle of charge q when accelerated under a potential difference VV will be

Ek=qV

for a given V,

Ekq

Therefore for proton and deuteron, the ratio of charges is 1 : 1


Hence A is the correct option




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