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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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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The total radiant energy per unit area, normal to the direction of incidence
- If A=4i+4j+4k and b=3i+j+4k, then angle between vectors A and B is
- If ∆U and ∆W represent the increase in internal energy and work done by the system
- The resultant of two forces, one double the other in magnitude, is perpendicular
- The charge flowing through a resistance R varies with time t as Q=at-bt²,
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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