A given ray of light suffers minimum deviation in an equilateral prism P. Additional prism Q and R of identical shape and of the same material as P are now added as shown in the figure. The ray will suffer (1) greater deviation (2) no deviation (3) same deviation as before (4) total internal reflection

A given ray of light suffers minimum deviation in an equilateral prism

1.	A given ray of light suffers minimum deviation in an equilateral prism P. Additional prism Q and R of identical shape and of the same material as P are now added as shown in the figure. The ray will suffer (1) greater deviation (2) no deviation (3) same deviation as before (4) total internal reflection
Answer» Solution :Figure (a) is part of an EQUILATERAL prism of figure (b) as shown in figure. Which is a magnified image of figure (c ). Therefore the RAY will suffer the same DEVIATION in figure (a) and figure ( c ).