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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
- If α (current gain) of transistor is 0.98, then what is the value of β
- A straight conductor 0.1 m long moves in a uniform magnetic field 0.1 T.
- A parallel plate capacitor is charged and then isolated. The effect of increasing
- A step-down transformer has 50 turns on secondary and 1000 turns on primary winding.
- If an electron and a proton have the same de-Broglie wavelength, then the kinetic
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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