Question
Question: A crown glass prism of refracting angle 6<sup>0</sup> is to be used for deviation without dispersion...
A crown glass prism of refracting angle 60 is to be used for deviation without dispersion with a flint glass of angle of prism a. Given: for crown glass µr = 1.513 and µv = 1.523, for flint glass µr = 1.645 and µv = 1.665. Find a
A
30
B
40
C
4.50
D
50
Answer
30
Explanation
Solution
(–
) a1 = (
–
) a2
or a2 =(1.665−1.645)(1.523−1.513)60 = 30.