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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
- An objective moves ,starting from rest through a resistive medium
- A ray enters a glass sphere of refractive index μ=√3 at an angle of incidence of 60⁰
- A wave in a string has an amplitude of 2cm. The wave travels in the positive direction
- The wavelength of kα, X-rays produced by an X-ray tube 0.76Å. The atomic number
- Before using the tangent galvanometer, its coil is set in
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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