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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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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The angular speed of earth, so that the object on equator may appear weightless
- The charge flowing through a resistance R varies with time t as Q=at-bt²,
- A bar magnet of moment of inertia I is vibrated in a magnetic field of induction
- A circular disc X of radius R is made from an iron plate of thickness t and another disc
- 64 drops of mercury, each charged to a potential of 10 V, are combined
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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