A) 4 :1
B) 3 :1
C) 2 :1
D) 1:1
Correct Answer: D
Solution :
Here: Refractive angle of first prism having \[(R.I.\,\mu =10{}^\circ )\] Refractive angle of second prism having \[(R.I.\,\mu =20{}^\circ )\] As the colour deviation power depends upon the material of prisms (refractive index) and not on refracting angles. As the both of the prismss are made of same material. Hence, the ratio of deviation power will become same so, that the ratio of deviation powers will be 1:1.You need to login to perform this action.
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