A) 2 m
B) 4 cm
C) 16 cm
D) 32 cm
Correct Answer: D
Solution :
\[\frac{{{f}_{l}}}{{{f}_{a}}}=\frac{{{(}_{a}}{{\mu }_{g}}-1)}{{{(}_{l}}{{\mu }_{g}}-1)}\]\[\frac{\sin {{45}^{o}}}{\sin {{30}^{o}}}\]\[\Rightarrow {{f}_{w}}=32\,cm\]You need to login to perform this action.
You will be redirected in
3 sec