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The near point and far point of a person are 40 cm and 250 cm, respectively. Determine the power of the lens he/she should use while reading a book kept at distance 25 cm from the eye.
Options
(a) 2.5 D
(b) 5 D
(c) 1.5 D
(d) 3.5 D
Correct Answer:
1.5 D
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
- Sound waves travel at 350m/s through a warm air and at 3500 m/s through brass
- An unpolarised beam of intensity I₀ falls on a polaroid. The intensity
- A condenser of 250 μF is connected in parallel to a coil of inductance of 0.16 mH
- The valence band and the conductance band of a solid overlap at low temperature
- Three capacitors each of capacity 4 μF are to be connected in such a way that the effective
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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