A ray light of intensity I is incident on a parallel glass-slab at a point A as shown in figure it undergoes partial reflection and refraction. At each reflection 20% of incident energy is refracted rays AB and A'B' undergo interference find the ratio `I_(max)//I_(min)`

A ray of light intensity I is incident on a parallel glass-slab at a point A as shown in figure. 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

A ray of light intensity I is incident on a parallel glass-slab at a point A as shown in figure. 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

A ray of light intensity I is incident on a parallel glass-slab at a point A as shown in figure. 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

A ray of light of intensity I is incident on a parallel glass slab at a point A as show. It undergoes partial reflection and refraction. At each reflaction 25% of incident energy is reflected. The rays AB and A'B' undergo interference. The ratio I_(max)//I_(min) is

A ray of light of internsity I is incident on a parallel glass slab at a point A as shown. It undergoes partial reflection and refraction. At each reflection and refraction. At each rerflection 20% of incident energy is reflectrd. The rasys AB and A' B' undergo interference. The ratio I_(max)//I_(min) is

A ray of light is incident on a parallel-sided glass slab as shown in the figure. The angle of refraction for this ray of light is likely to be :