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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
- In the series resonance the value of impedence is 3 Ω and the resistance is 4Ω,
- Two particles A and B, move with constant velocities V₁ and V₂. At the initial
- A cricketer catches a ball of mass 150 g in 0.1 sec moving with speed 20 m/s
- Two cells when connected in series are balanced on 8m on a potentiometer.
- For the action of a common Base (CB) transistor, (E=emitter, B= base, C= collector)
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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