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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 magnetic flux linked with a circuit of resistance 100Ω increases from 10 to 60 Wb.
- Graph of force per unit length between two long parallel current carrying
- Dependence of intensity of gravitational field (E) of earth with distance(r)
- If potential(in volts) in a region is expressed as V(x,y,z) = 6xy – y + 2yz,
- Which logic gate is represented by the following combination of logic gate?
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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