| ⇦ | 
| ⇨ |
Two identical thin plano-convex glass lenses (refractive index 1.5) each having radius of curvature of 20 cm are placed with their convex surfaces in contact at the centre. The intervening space is filled with oil of refractive index 1.7. The focal length of the combination is
Options
(a) (-20 cm)
(b) (-25 cm)
(c) (-50 cm)
(d) 50 cm
Correct Answer:
(-50 cm)
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - Find the maximum velocity with which a train can be moved on a circular track
- If the angle of minimum deviation is 60° for an equilateral prism, then the refractive
- In a potentiometer experiment two cells of e.m.f. E₁ and E₂ are used in series
- In a mass spectrometer used for measuring the masses of ions, the ions
- If light emitted from sodium bulb is passed through sodium vapour,
Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Find the maximum velocity with which a train can be moved on a circular track
- If the angle of minimum deviation is 60° for an equilateral prism, then the refractive
- In a potentiometer experiment two cells of e.m.f. E₁ and E₂ are used in series
- In a mass spectrometer used for measuring the masses of ions, the ions
- If light emitted from sodium bulb is passed through sodium vapour,
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