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
Text Solution
Verified by ExpertsThe correct answer is:
C
Using 
; where 
For parabolas to coincide in the two photographs, the 
should be same for the two cases
Thus, 
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