Question

Three particles having charges in the ratio of 2 : 3 : 5 produce the same point on the photographic film in Thomson experiment. Their masses are in the ratio of

• A. 2 : 3 : 5
• B. 5 : 3 : 2
• C. 15 : 10 : 6
• D. 3 : 5 : 2

Answer 1

Answer: (A)

2 : 3 : 5

As the three charges produce same spot on the photographic film , so they have must same value of specific charge. Thus, the ratio of masses will be $2:3:5$