A) \[1.5\times 1{{0}^{6}}\]
B) \[1.78\times 1{{0}^{8}}\]
C) \[2.25\times 1{{0}^{8}}\]
D) \[2.67\times 1{{0}^{8}}\]
Correct Answer: C
Solution :
\[\operatorname{Refractive} index of glass = \frac{3}{2}\] \[\operatorname{Refractive} index of water = \frac{4}{3}\] \[{{\mu }_{\operatorname{g}}}=\frac{C}{2\times 1{{0}^{8}}}\] ?.(1) \[{{\mu }_{\operatorname{W}}}=\frac{C}{\operatorname{v}}\] ?.(2) \[\frac{v}{2\times 1{{0}^{8}}}=\frac{\mu \operatorname{g}}{{{\mu }_{\operatorname{w}}}}\] \[v=\frac{2\times {{10}^{8}}\times 3\times 3}{2\times 4}\] \[v=2.25\times {{10}^{8}}\operatorname{m}/s\]
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