Question

13.a
The ratio of the e/m values of a proton and an a-particle is:
(1) 2:1
(2) 1:1
(3) 1:2
(4)1:4​

Answer 1

The ratio of the e/m values of a proton and an a-particle is:

(1) 2:1✓✓✓✓

(2) 1:1

(3) 1:2

(4)1:4