Question

The far point of a near sighted person is 6.0 m from her eyes, and she wears contacts that enable her to see distant objects clearly. A tree is 18.0 m away and 2.0 m high. How high is the image formed by the contacts :–

(a) 1.0 m 

(b) 1.5 m 

(c) 0.75 m 

(d) 0.50 m

Answer 1

Correct option (d) 0.50 m

Explanation:

 The far point of 6.0 cm tell us that the focal length of the lens is f = –6.0m, u = – 18 m and h = 2m.