| ⇦ | 
| ⇨ |
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 Young’s modulus experiment, if length of wire and radius both are doubled,
- When an electron beam passes through an electric field they gain kinetic energy.
- For photoelectric emission to take place
- A coil of 40 henry inductance is connected in series with a resistance of 8 ohm
- In R-L-C series circuit, the potential differences across each element is 20 V.
Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In the Young’s modulus experiment, if length of wire and radius both are doubled,
- When an electron beam passes through an electric field they gain kinetic energy.
- For photoelectric emission to take place
- A coil of 40 henry inductance is connected in series with a resistance of 8 ohm
- In R-L-C series circuit, the potential differences across each element is 20 V.
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply