Question:
For a normal eye, the cornea of eye provides a converging power of 40 D and the least converging power of the eye lens behind the comes is 20 D. Using this information, the distance between the retina and the comea-eye lens can be estimated to be
For a normal eye, the cornea of eye provides a converging power of 40 D and the least converging power of the eye lens behind the comes is 20 D. Using this information, the distance between the retina and the comea-eye lens can be estimated to be
Updated On: Apr 21, 2025
- 5 cm
- 2.5 cm
- 1.67 cm
- 1.5 cm
Hide Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
The correct option is (C): 1.67 cm
Was this answer helpful?
0
0
Top Questions on Ray optics and optical instruments
- Two convex lenses A and B, each of focal length 10.0 cm, are mounted on an optical bench at 50.0 cm and 70.0 cm respectively. An object is mounted at 20.0 cm. Find the nature and position of the final image formed by the combination.
- CBSE CLASS XII - 2025
- Physics
- Ray optics and optical instruments
- When a parallel beam of light enters water surface obliquely at some angle, what is the effect on the width of the beam?
- CBSE CLASS XII - 2025
- Physics
- Ray optics and optical instruments
- A transparent solid cylindrical rod (refractive index \( \frac{2}{\sqrt{3}} \)) is kept in air. A ray of light incident on its face travels along the surface of the rod, as shown in the figure. Calculate the angle \( \theta \).
- CBSE CLASS XII - 2025
- Physics
- Ray optics and optical instruments
- A beaker is filled with water (refractive index \( \frac{4}{3} \)) up to a height \( H \). A coin is placed at its bottom. The depth of the coin, when viewed along the near normal direction, will be:
- CBSE CLASS XII - 2025
- Physics
- Ray optics and optical instruments
- Which of the following statements is incorrect?
(A) For a convex mirror, magnification is always negative.
(B) For all virtual images formed by a mirror, magnification is positive.
(C) For a concave lens, magnification is always positive.
(D) For real and inverted images, magnification is always negative.- CBSE CLASS XII - 2025
- Physics
- Ray optics and optical instruments
View More Questions
Questions Asked in NEET exam
- Consider the diameter of a spherical object being measured with the help of a Vernier Callipers. Suppose its 10 Vernier Scale Divisions (V.S.D.) are equal to its 9 Main Scale Divisions (M.S.D.). The least count in the M.S. is 0.1 cm and the zero of V.S. is at -0.1 cm when the jaws of Vernier callipers are closed. If the main scale reading for the diameter is \(M = 5\) cm and the number of coinciding vernier division is 8, the measured diameter after zero error correction, is:
- NEET (UG) - 2025
- Measurement of length
- An oxygen cylinder of volume 30 litre has 18.20 moles of oxygen. After some oxygen is withdrawn from the cylinder, its gauge pressure drops to 11 atmospheric pressure at temperature \(27^\circ\)C. The mass of the oxygen withdrawn from the cylinder is nearly equal to: [Given, \(R = \frac{100}{12} \text{ J mol}^{-1} \text{K}^{-1}\), and molecular mass of \(O_2 = 32 \text{ g/mol}\), 1 atm pressure = \(1.01 \times 10^5 \text{ N/m}^2\)]
- NEET (UG) - 2025
- Ideal-gas equation and absolute temperature
- Given below are two statements:
Statement I: Fig fruit is a non-vegetarian fruit as it has enclosed fig wasps in it.
Statement II: Fig wasp and fig tree exhibit a mutual relationship as the fig wasp completes its life cycle in the fig fruit and the fig fruit gets pollinated by the fig wasp. - A microscope has an objective of focal length \(f_o = 2\) cm and an eyepiece of focal length \(f_e = 4\) cm. The tube length of the microscope is \(L = 40\) cm. If the distance of distinct vision of eye is \(D = 25\) cm, the magnification in the microscope is:
- NEET (UG) - 2025
- Optical Instruments
- Which of the following statements about RuBisCO is true?
- NEET (UG) - 2025
- Plant Biology
View More Questions