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Two beams of red and violet colours are made to pass separately through a prism (angle of the prism is 60o). In the position of minimum deviation, the angle of refraction will be:
- a)30∘ for both the colours
- b)greater for violet colour
- c)greater for red colour
- d)equal but not 30∘ for both the colours
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Two beams of red and violet colours are made to pass separately throug...
During minimum deviation,
r1 = r2 = A/2 = 60°/2 = 30∘ (∵ A = 60°)
Also, the angle of refraction does not depend on the color of beams of light.
r1 = r2 = A/2 = 60°/2 = 30∘ (∵ A = 60°)
Also, the angle of refraction does not depend on the color of beams of light.
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Two beams of red and violet colours are made to pass separately throug...
Understanding Refraction through a Prism
When light passes through a prism, it bends due to refraction. The angle of deviation depends on the wavelength of the light. In this case, we are examining red and violet beams passing through a prism with an angle of 60 degrees.
Minimum Deviation Condition
In the position of minimum deviation, the light rays enter and exit the prism symmetrically. This symmetry leads to specific angles of refraction at the prism surfaces, which can be analyzed using Snell's law.
Refraction Angles for Different Colors
- Red Light: Red light has a longer wavelength and is less refracted compared to violet light.
- Violet Light: Violet light has a shorter wavelength and experiences more refraction as it passes through the prism.
Comparison of Angles of Refraction
- When both beams are subjected to the same prism angle (60 degrees), the angle of refraction will be the same for both colors at the point of minimum deviation.
- This is because the prism's geometry and the condition of minimum deviation ensure that even though the angles of deviation differ, the angles of refraction remain equal.
Conclusion
Thus, the correct conclusion is that at minimum deviation, the angle of refraction for both red and violet beams will be equal, specifically 30 degrees in this case. Therefore, the correct answer is option 'A': both colors will have an angle of refraction of 30 degrees.
When light passes through a prism, it bends due to refraction. The angle of deviation depends on the wavelength of the light. In this case, we are examining red and violet beams passing through a prism with an angle of 60 degrees.
Minimum Deviation Condition
In the position of minimum deviation, the light rays enter and exit the prism symmetrically. This symmetry leads to specific angles of refraction at the prism surfaces, which can be analyzed using Snell's law.
Refraction Angles for Different Colors
- Red Light: Red light has a longer wavelength and is less refracted compared to violet light.
- Violet Light: Violet light has a shorter wavelength and experiences more refraction as it passes through the prism.
Comparison of Angles of Refraction
- When both beams are subjected to the same prism angle (60 degrees), the angle of refraction will be the same for both colors at the point of minimum deviation.
- This is because the prism's geometry and the condition of minimum deviation ensure that even though the angles of deviation differ, the angles of refraction remain equal.
Conclusion
Thus, the correct conclusion is that at minimum deviation, the angle of refraction for both red and violet beams will be equal, specifically 30 degrees in this case. Therefore, the correct answer is option 'A': both colors will have an angle of refraction of 30 degrees.
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Two beams of red and violet colours are made to pass separately through a prism (angle of the prism is 60o). In the position of minimum deviation, the angle of refraction will be:a)30 for both the coloursb)greater for violet colourc)greater for red colourd)equal but not 30 for both the coloursCorrect answer is option 'A'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Two beams of red and violet colours are made to pass separately through a prism (angle of the prism is 60o). In the position of minimum deviation, the angle of refraction will be:a)30 for both the coloursb)greater for violet colourc)greater for red colourd)equal but not 30 for both the coloursCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two beams of red and violet colours are made to pass separately through a prism (angle of the prism is 60o). In the position of minimum deviation, the angle of refraction will be:a)30 for both the coloursb)greater for violet colourc)greater for red colourd)equal but not 30 for both the coloursCorrect answer is option 'A'. Can you explain this answer?.
Two beams of red and violet colours are made to pass separately through a prism (angle of the prism is 60o). In the position of minimum deviation, the angle of refraction will be:a)30 for both the coloursb)greater for violet colourc)greater for red colourd)equal but not 30 for both the coloursCorrect answer is option 'A'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Two beams of red and violet colours are made to pass separately through a prism (angle of the prism is 60o). In the position of minimum deviation, the angle of refraction will be:a)30 for both the coloursb)greater for violet colourc)greater for red colourd)equal but not 30 for both the coloursCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two beams of red and violet colours are made to pass separately through a prism (angle of the prism is 60o). In the position of minimum deviation, the angle of refraction will be:a)30 for both the coloursb)greater for violet colourc)greater for red colourd)equal but not 30 for both the coloursCorrect answer is option 'A'. Can you explain this answer?.
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Two beams of red and violet colours are made to pass separately through a prism (angle of the prism is 60o). In the position of minimum deviation, the angle of refraction will be:a)30 for both the coloursb)greater for violet colourc)greater for red colourd)equal but not 30 for both the coloursCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Two beams of red and violet colours are made to pass separately through a prism (angle of the prism is 60o). In the position of minimum deviation, the angle of refraction will be:a)30 for both the coloursb)greater for violet colourc)greater for red colourd)equal but not 30 for both the coloursCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Two beams of red and violet colours are made to pass separately through a prism (angle of the prism is 60o). In the position of minimum deviation, the angle of refraction will be:a)30 for both the coloursb)greater for violet colourc)greater for red colourd)equal but not 30 for both the coloursCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
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