Dual Nature Of Light Question 79
Question: $ {{O}^{++}},\ {{C}^{+}},\ H{{e}^{++}} $ and $ {{H}^{+}} $ ions are projected on the photographic plate with same velocity in a mass spectrograph. Which one will strike farthest [RPMT 2003]
Options:
A) $ {{O}^{++}} $
B) $ {{C}^{+}} $
C) $ H{{e}^{++}} $
D) $ H_{2}^{+} $
Show Answer
Answer:
Correct Answer: B
Solution:
$ 2r=\frac{2mv}{qB},\Rightarrow 2r\propto \frac{m}{q} $
Þ $ \frac{m}{q} $ is maximum for $ {{C}^{+}} $
BETA
