A) \[\mu t\]
B) \[\frac{\mu t}{c}\]
C) \[\frac{tc}{\mu }\]
D) \[\frac{t}{\mu c}\]
Correct Answer: B
Solution :
Refractive index \[(\mu )\] is defined as \[\mu =\frac{{{v}_{0}}}{{{v}_{g}}}\] ?..(i) where \[{{v}_{0}}\] is velocity in vacuum and \[{{v}_{g}}\] in glass. Also, \[time=\frac{\text{distance}}{velocity\,in\,glass}\] ?..(ii) From Eqs. (i) and (ii), we get \[time=\frac{t\mu }{c}\]You need to login to perform this action.
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