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An object is 8 cm high. It is desired to form a real image 4 cm high at 60 cm from the mirror. The type of mirror needed with the focal length is
Options
(a) convex mirror with focal length f=40 cm
(b) convex mirror with focal length f=20 cm
(c) concave mirror with focal length f=-40 cm
(d) concave mirror with focal length f=-20 cm
Correct Answer:
convex mirror with focal length f=40 cm
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A body of length 1 m having cross-sectional area 0.75 m² has heat flow through it
- If λ₁ and λ₂ are the wavelengths of the first members of the Lyman and Paschen
- A radioactive sample S₁ having an activity of 5 μCi has twice the number of nuclei
- The minimum wavelength of X-rays emitted by X-ray tube is 0.4125Å
- For inelastic collision between two spherical rigid bodies
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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