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The equiconvex lens has focal length f. If it is cut perpendicular to the principal axis passing through optical centre, then focal length of each half is
Options
(a) f/2
(b) f
(c) 3f/2
(d) 2f
Correct Answer:
2f
Explanation:
When an equiconvex lens is cut parallel to principal axis, then focal length remains the same and when the lens is cut perpendicular to principal axis, then its focal length becomes twice the original.
Related Questions: - In the elastic collision of objects
- Light propagates rectilinearly because of its
- The barrier potential of a p-n junction depends on
- A bar magnet of moment M and pole strength m is cut into parts of equal lengths.
- Photons with energy 5eV are incident on a cathode C in a photoelectric cell.
Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In the elastic collision of objects
- Light propagates rectilinearly because of its
- The barrier potential of a p-n junction depends on
- A bar magnet of moment M and pole strength m is cut into parts of equal lengths.
- Photons with energy 5eV are incident on a cathode C in a photoelectric cell.
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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