The Human Eye and the Colorful World Objective Questions
11-The farthest point upto which the eye can see objects clearly is ___ for a normal eye.
(A) 250m
(B) 400m
(C) 500m
(D) infinity
12-A human eye being has a horizontal field of view about ___ with one eye.
(A) 90°
(B) 120°
(C) 150°
(D) 180°
13-A human eye being has a horizontal field of view about ___ with both eyes.
(A) 90°
(B) 120°
(C) 150°
(D) 180°
14-Following is far-sightedness
(A) Myopia
(B) Hypermetropia
(C) Presbyopia
(D) All of the above
15-In Myopia, the image of a distant object is formed
(A) in front of retina
(B) behind the retina
(C) at the retina
(D) any of the above
16-Following is true for Myopia
(A) It can be corrected by using a concave lens
(B) it may arise due to excessive curvature of the eye lens
(C) it may arise due to elongation of eyeball
(D) all of the above
17-In Hypermetropia, the image of a distant object is formed
(A) in front of retina
(B) behind the retina
(C) at the retina
(D) any of the above
18-Following is true for Hypermetropia
(A) It can be corrected by using a convex lens
(B) it may arise when focal length of eye lens is too long
(C) it may arise when eyeball has become too small
(D) all of the above
19-The person who is suffering from ___ requires bi-focal lens.
(A) Myopia
(B) Hypermetropia
(C) both (A) and (B)
(D) None of the above
20-The person who is suffering from the following disease cannot donate eyes.
(A) diabetes
(B) asthma
(C) hypertension
(D) tetanus
ANSWERS:
11-(D), 12-(C), 13-(D), 14-(B), 15-(A), 16-(D), 17-(B), 18-(D), 19-(C), 20-(D)