A) 98 cm
B) 140 cm
C) 120 cm
D) 144 cm
Correct Answer: A
Solution :
\[{n}'=n\,\left( \frac{v}{v-{{v}_{s}}} \right)\] Þ \[{\lambda }'=\lambda \left( \frac{v-{{v}_{S}}}{v} \right)\] Þ \[{\lambda }'=120\,\left( \frac{330-60}{330} \right)=98\,cm.\]You need to login to perform this action.
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