| ⇦ | 
| ⇨ |
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: - When a piece of metal is illuminated by a monochromatic light of wavelength λ,
- A particle of mass 100 g is thrown vertically upwards with a speed of 5 m/s. The work
- Two bubbles A and B (A>B) are joined through a narrow tube. Then
- A radio isotope X with a half life 1.4 x 10⁹ years decays to Y which is stable
- A nucleus at rest splits into two nuclear parts having radii in the ratio 1:2.
Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When a piece of metal is illuminated by a monochromatic light of wavelength λ,
- A particle of mass 100 g is thrown vertically upwards with a speed of 5 m/s. The work
- Two bubbles A and B (A>B) are joined through a narrow tube. Then
- A radio isotope X with a half life 1.4 x 10⁹ years decays to Y which is stable
- A nucleus at rest splits into two nuclear parts having radii in the ratio 1:2.
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