Q

In a normal eye, the distance of the retina from the eye lens is 2.5 cm. What is the power of the eye lens when it is focused at its near point, 25 cm from the eye?

RRB Group-D 30/09/2022 / Shift-II 2022
✓ Answer: B 44 D
Using the lens formula with u = -0.25 m and v = 0.025 m: P = 1/f = 1/v - 1/u = 40 - (-4) = 44 D.
← Previous Question Next Question →

📚 Related Questions

1 Identify the correct labelling of five white blood cells shown in a… 2 Which environmental factor plays an important role in sex determination in some… 3 The cells of meristematic tissue are highly active, but they lack 4 Which of the following removes nitrogenous waste products produced by metabolic activities… 5 Name the process through which gaseous exchange takes place across the cell… 6 A person with AB blood group: