When a thin transparent plate of thickness t and refractive index m is – McqOptions

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1.	When a thin transparent plate of thickness t and refractive index m is placed in the path of one of the two interfering waves of light, then the path difference changes by [MP PMT 2002]
A.	(m + 1)t
B.	(m ? 1)t
C.	\[\frac{(\mu +1)}{t}\]
D.	\[\frac{(\mu -1)}{t}\]
Answer» C. \[\frac{(\mu +1)}{t}\]

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