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For the normal eye, the cornea of eye provides a converging power of 40D and the least converging power of the eye lens behind the cornea is 20D. Using this information, the distance between the retina and the eye lens of the eye can be estimated to be:
Options
(a) 2.5 cm
(b) 1.67 cm
(c) 1.5 cm
(d) 5 cm
Correct Answer:
2.5 cm
Explanation:
1/f = 1/v – 1/u
= 1/ 1 / 40 = 1/u
u = 1/40 m = 2.5 m
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An electric lamp is connected to 220 V, 50 Hz supply. Then the peak voltge is
- The frequencies of X-rays,γ-rays and ultraviolet rays are respectively p,q and r
- The resistance of a wire is 5 ohm at 50° C and 6 ohm at 100° C. The resistance
- A boat of anchor is rocked by waves whose crests are 100 m apart and velocity
- In the Young’s double slit experiment, the intensity of light at a point on the screen
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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