| ⇦ | 
| ⇨ |
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: - The area of cross-section of one limb of an U-tube is twice that of the other.
- If the velocity of charged particle has both perpendicular and parallel components
- Frequency of stretched string will increase by
- A Carnot engine takes heat from a reservoir at 627⁰C and rejects heat
- What is the energy of He⁺ electron in first orbit?
Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The area of cross-section of one limb of an U-tube is twice that of the other.
- If the velocity of charged particle has both perpendicular and parallel components
- Frequency of stretched string will increase by
- A Carnot engine takes heat from a reservoir at 627⁰C and rejects heat
- What is the energy of He⁺ electron in first orbit?
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