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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
- A block is moving up an inclined plane of inclination 60° with velocity of 20 ms⁻¹
- Characteristic X-rays are produced due to
- In an AC generator, a coil with N turns, all of the same area A and total resistance R,
- The range of voltmeter is 10V and its internal resistance is 50Ω.
- The value of coefficient of volume expansion of glycerin is 5 x 10⁻⁴ k⁻¹.
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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