A) 68 cm
B) 75 cm
C) 128 cm
D) 34 cm
Correct Answer: D
Solution :
\[n=\frac{Real\text{ }depth}{Apparent\text{ }depth}\] \[n=\frac{6}{4}+\frac{3}{2}\] \[\frac{{{n}_{1}}}{{{n}_{2}}}-\frac{{{n}_{2}}}{v}=\frac{{{n}_{1}}-{{n}_{2}}}{R}\] \[\frac{1.5}{6}-\frac{4}{17}=\frac{1.5-1}{R}\] \[R=34\,cm\]You need to login to perform this action.
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