Question

The values of the near and far points for a normal eye are _____ and _____, respectively.

• A. 25 cm, infinity
• B. infinity, 25 cm
• C. 25 m, infinity
• D. infinity, 25 m

Answer 1

The correct option is A 25 cm, infinity

The near point is the minimum distance at which objects can be clearly seen without strain. For a normal eye, it is 25 cm.

The far point is the maximum distance up to which eyes can see objects clearly without strain. For a normal eye, it is infinity. Thus, the range of vision for a normal eye is 25 cm to infinity.