Question

If n,1 and n,2 are their respective refractive indices
while A and A' are respective angles of prism, then
which of the following condition is correct for the
occurrence of recombination of white light?
(1) n,1 >n2: ZA = ZA' (2) n1= n,2: ZA = A'
(3) n1= n2 < ZA' (4) n1 = n2 ZA > ZA"​

Answer 1

Answer:

2

Explanation:

In both the cases if it is different from the other prism , the deviation will be different and so the recombination wont be possible. Is this from Anthe??

Answer 2

Answer:

(2) n1= n2: A = A'

Explanation:

Given that

n1 and n2 are the refractive indices and A ,A' are the angle

We know that when light if travel from one medium to the another medium then the relationship given as

n1 sinA = n2 sinA'

n1/n2 = sinA'/sinA

If n1=n2 then sinA = sinA'

So we can say that

A= A'

Answer is (2).

(2) n1= n2: A = A'