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Three right angled prisms of refractive indices  and  are fixed together using an optical glue as shown in figure. If a ray passes through the prisms without suffering any deviation, then

a)

b)

c)

d)



Question ID - 152555 | SaraNextGen Top Answer

Three right angled prisms of refractive indices  and  are fixed together using an optical glue as shown in figure. If a ray passes through the prisms without suffering any deviation, then

a)

b)

c)

d)

1 Answer
127 votes
Answer Key / Explanation : (d) -

(d)

At

    …(i)

At

   …(i)

At

    …(iii)

At

   …(iv)

Adding (i), (ii), (iii), and (iv) we get

127 votes


127