Questions
For the angle of minimum deviation of a prism to be equal to its refracting angle, the prism must be made of a material whose refractive index :
detailed solution
Correct option is D
Dm=Aμ=Sin2A2Sin A/2=2sinA/2 cosA/2sinA/2 μ2=cosA/2 If A=90o,μ=2If A=0, μ=2So μ lies between 2 and 2Talk to our academic expert!
Similar Questions
ABC is an isosceles right angled triangle with the angle BAC 90o. A ray of light parallel to the base BC strikes the face AB. The refracted ray in the prism strikes the base BC. If the refractive index of the material of the prism is , find the total angle of deviation of the final emergent ray
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