A ray of light of intensity I is incident on a parallel glass-slab at – McqOptions

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1.	A ray of light of intensity I is incident on a parallel glass-slab at a point A as shown in fig. It undergoes partial reflection and refraction. At each reflection 25% of incident energy is reflected. The rays AB and A'B' undergo interference. The ratio \[{{I}_{\max }}/{{I}_{\min }}\] is [IIT 1990]
A.	4 : 1
B.	8 : 1
C.	7 : 1
D.	49 : 1
Answer» E.

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