Three right angled prisms of refractive indices \[{{n}_{1}},{{n}_{2}}\] and \[{{n}_{3}}\] are fixed together using an optical glue as shown in figure. If a ray passes through the prisms without suffering any deviation, then

\[{{n}_{1}}={{n}_{2}}={{n}_{3}}\]

\[{{n}_{1}}={{n}_{2}}\ne {{n}_{3}}\]

\[1+n_{2}^{2}=n_{1}^{2}+n_{3}^{2}\]

Three right angled prisms of refractive indices \[{{n}_{1}},{{n}_{2}}\

1.	Three right angled prisms of refractive indices \[{{n}_{1}},{{n}_{2}}\] and \[{{n}_{3}}\] are fixed together using an optical glue as shown in figure. If a ray passes through the prisms without suffering any deviation, then
A.	\[{{n}_{1}}={{n}_{2}}={{n}_{3}}\]
B.	\[{{n}_{1}}={{n}_{2}}\ne {{n}_{3}}\]
C.	A metal at \[0K\] is finite
D.	\[1+n_{2}^{2}=n_{1}^{2}+n_{3}^{2}\]
Answer» E.

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Three right angled prisms of refractive indices \[{{n}_{1}},{{n}_{2}}\] and \[{{n}_{3}}\] are fixed together using an optical glue as shown in figure. If a ray passes through the prisms without suffering any deviation, then

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