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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
- Two straight wires each 10cm long are parallel to one another and seperated by 2 cm.
- Work of 3.0×10⁻⁴ joule is required to be done in increasing the size of a soap film
- The threshold wavelength for photoelectric emission from a material is 4800 Å.
- Alternating current cannot be measured by D.C Ammeter because
- A long straight wire carries a certain current and produces a magnetic field
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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