A ray of light PQ is incident on the face of an isosceles glass prism kept on a horizontal table [Fig. 2.89].If for the ray PQ the prism is at the position of minimum deviation then

A ray of light PQ is incident on the face of an isosceles glass prism

1.	A ray of light PQ is incident on the face of an isosceles glass prism kept on a horizontal table [Fig. 2.89].If for the ray PQ the prism is at the position of minimum deviation then
Answer» `ALPHA = BETA` `alpha gt beta` `alpha LT beta` `alpha + beta = 90` Answer :A

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A ray of light PQ is incident on the face of an isosceles glass prism kept on a horizontal table [Fig. 2.89].If for the ray PQ the prism is at the position of minimum deviation then

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