In order to coincide the parabolas formed by singly ionised ions in on – McqOptions

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1.	In order to coincide the parabolas formed by singly ionised 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
Answer» D. None of these

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