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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.
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Two point charges +2 coulomb and +10 coulomb repel each other with a force of 12 N.
- The atomic number of the most common element in nuclear fusion is
- A ray of light travelling in a transparent medium of refractive index µ, falls on surface
- A body of mass 2 kg is kept by pressing to a vertical wall by a force of 100 N
- The phase difference between two points seperated by 0.8 m in a wave of frequency
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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