An achromatic prism is made by combining two prisms P1(μV=1.523,μR=1.515) and P2(μV=1.666,μr=1.650) , where μ represents the refractive index. If the angle of the prism P1 is 10o , then the angle of the prism P2 will be:
A
5o
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B
12o
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C
10.6o
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D
3o
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Solution
The correct option is B5o
The deviation is given by,
δ=(μV−μR)A
The angle of deviation is equal for both the prisms.