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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
Related Questions: - The oscillating frequency of a cyclotron is 10 MHz. If the radius of its Dees is o.5 m,
- The interferance pattern is obtained with two coherent light sources of intensity
- The radius of a ball is(5.2±0.2)cm.The percentage error in the volume of the ball
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The oscillating frequency of a cyclotron is 10 MHz. If the radius of its Dees is o.5 m,
- The interferance pattern is obtained with two coherent light sources of intensity
- The radius of a ball is(5.2±0.2)cm.The percentage error in the volume of the ball
- Ring, hollow ring and solid sphere are rolled down from inclined plane
- The threshold wavelength for photoelectric emission from a material is 4800 Å.
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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