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If fV and fR are the focal lengths of a convex lensfor violet and red light respectively and FV and FR are the focal lengths of concave lens for violetand red light respectively, then we have [1996]
  • a)
    fV < fR and FV > FR
  • b)
    fV < fR and FV < FR
  • c)
    fV > fR and FV > FR
  • d)
    fV > fR and FV < FR
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
If fV and fR are the focal lengths of a convex lensfor violet and red ...
According to Cauchy relation
Hence, red light having maximum wavelength
has maximum focal length.
∴ fv < fr and also Fv > Fr as focal length is
negative for a concave lens.
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If fV and fR are the focal lengths of a convex lensfor violet and red light respectively and FV and FR are the focal lengths of concave lens for violetand red light respectively, then we have [1996]a)fV < fR and FV > FRb)fV < fR and FV < FRc)fV > fR and FV > FRd)fV > fR and FV < FRCorrect answer is option 'A'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about If fV and fR are the focal lengths of a convex lensfor violet and red light respectively and FV and FR are the focal lengths of concave lens for violetand red light respectively, then we have [1996]a)fV < fR and FV > FRb)fV < fR and FV < FRc)fV > fR and FV > FRd)fV > fR and FV < FRCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If fV and fR are the focal lengths of a convex lensfor violet and red light respectively and FV and FR are the focal lengths of concave lens for violetand red light respectively, then we have [1996]a)fV < fR and FV > FRb)fV < fR and FV < FRc)fV > fR and FV > FRd)fV > fR and FV < FRCorrect answer is option 'A'. Can you explain this answer?.
Solutions for If fV and fR are the focal lengths of a convex lensfor violet and red light respectively and FV and FR are the focal lengths of concave lens for violetand red light respectively, then we have [1996]a)fV < fR and FV > FRb)fV < fR and FV < FRc)fV > fR and FV > FRd)fV > fR and FV < FRCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12. Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
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