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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
- The cylindrical tube of a spray pump has radius R, one end of which has n fine holes,
- The moment of inertia of a uniform circular disc of radius R and mass M about an axis
- On observing light from three different stars P, Q and R, it was found that intensity
- In Young’s double silt experiment if the distance between the two slits
- The phase difference between the flux linked with a coil rotating in a uniform
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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