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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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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- For high frequency a capacity offers
- The intensity at the maximum in a Young’s double slit experiment is I₀.
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- The energy of a hydrogen atom in the ground state is – 13.6 eV. The energy of a He⁺ ion
- A particle covers half of its total distance with speed v1 and the rest half distance
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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