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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: - The dimensions of universal gas constant are
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- The temperature coefficient of a resistance wire is 0.00125 per degree.
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The dimensions of universal gas constant are
- An electron is
- The temperature coefficient of a resistance wire is 0.00125 per degree.
- When photons of energy hν fall on an aluminium plate (of work function E₀),
- A paramagnetic sample shows a net magnetisation of 0.8 Am⁻¹, when placed
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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