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In order to coincide the parabolas forme...

In order to coincide the parabolas formed by singly ionized ions in one spectrograph and doubly ionized ions in the other Thomson's mass spectrograph , the electric fields and magnetic fields are kept in the ratios `1 : 2` and `3 : 2` respectively . Then the ratio of masses of the ions is

A

`3:4`

B

`1:3`

C

`9:4`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
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