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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
- If, an electron in hydrogen atom jumps from an orbit of level n=3 to an orbit
- The value of workdone for rotating a magnet of magnetic moment M by an angle θ in external
- Electrons of mass m with de-Broglie wavelength λ fall on the target in an X-ray tube.
- In the series resonance the value of impedence is 3 Ω and the resistance is 4Ω,
- A current is flowing through resistance. A potential difference of 120 V
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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