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A concave mirror of focal length f₁ is placed at a distance d from a convex lens of focal length f₂. A beam of light coming from infinity and falling on this convex lens concave mirror combination returns to infinity. The distance d must be equal
Options
(a) f₁+f₂
(b) (- f₁ + f₂)
(c) 2 f₁ + f₂
(d) (-2 f₁ + f₂)
Correct Answer:
2 f₁ + f₂
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Consider two concentric spherical metal shells of radii r₁ and r₂( r₂>r₁). If the outer
- Three cells, each of e.m.f 1.5 V and internal resistance 1 ohm are connected in parallel
- The additional energy that should be given to an electron to reduce its de-Broglie
- A straight conductor 0.1 m long moves in a uniform magnetic field 0.1 T.
- what is the electric potential at a distance of 9cm from 3nC?
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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