Optics Question 741
Question: A mark at the bottom of a liquid appears to rise by 0.1 m. The depth of the liquid is 1 m. The refractive index of the liquid is
[CPMT 1999]
Options:
A) 1.33
B) $ \frac{9}{10} $
C) $ \frac{10}{9} $
D) 1.5v
Show Answer
Answer:
Correct Answer: C
Solution:
Real depth = $ 1 $
$ m $ Apparent depth = $ 1-0.1=0.9 $
$ m $ Refractive index $ \mu $ = $ \frac{\text{Real depth}}{\text{Apparent depth}}=\frac{1}{0.9}=\frac{10}{9} $
