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The angle of a prism is ‘A’. One of its refracting surfaces is silvered. Light rays falling at an angle of incidence 2A on the first surface returns back through the same path after suffering reflection at the silvered surface. The refractive index μ, of the prism is :
  • a)
    1/2 cos A
  • b)
    tan A
  • c)
    2 sin A
  • d)
    2 cos A
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
The angleof a prism is ‘A’. One of its refracting surfaces...
To retrace its path light rays should fall normally on the reflecting surface. So

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The angleof a prism is ‘A’. One of its refracting surfaces...
The angle of a prism is a measure of the deviation of light as it passes through the prism. When light enters a prism, it is refracted, or bent, by an angle that depends on the refractive index of the prism material and the angle at which the light enters the prism. This angle of deviation can be calculated using Snell's Law.
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The angleof a prism is ‘A’. One of its refracting surfaces is silvered. Light rays falling at anangle of incidence 2A on the first surface returns back through the same path after sufferingreflection at the silvered surface. The refractive index μ, of the prism is :a)1/2 cos Ab)tan Ac)2 sin Ad)2 cos ACorrect answer is option 'D'. Can you explain this answer?
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The angleof a prism is ‘A’. One of its refracting surfaces is silvered. Light rays falling at anangle of incidence 2A on the first surface returns back through the same path after sufferingreflection at the silvered surface. The refractive index μ, of the prism is :a)1/2 cos Ab)tan Ac)2 sin Ad)2 cos ACorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The angleof a prism is ‘A’. One of its refracting surfaces is silvered. Light rays falling at anangle of incidence 2A on the first surface returns back through the same path after sufferingreflection at the silvered surface. The refractive index μ, of the prism is :a)1/2 cos Ab)tan Ac)2 sin Ad)2 cos ACorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The angleof a prism is ‘A’. One of its refracting surfaces is silvered. Light rays falling at anangle of incidence 2A on the first surface returns back through the same path after sufferingreflection at the silvered surface. The refractive index μ, of the prism is :a)1/2 cos Ab)tan Ac)2 sin Ad)2 cos ACorrect answer is option 'D'. Can you explain this answer?.
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