Everyday Science Questions and Answers

Everyday Science Questions and Answers
1. An eye defect which usually results from an unequal curvature of the cornea is–
(A) nearsightedness (B) astigmatism
(C) colour blindness (D) night blindness
Ans : (B)

2. The velocity of sound in air (under normal conditions) is–
(A) 30 m / sec (B) 320 m / sec
(C) 332 m / sec (D) 3,320 m / sec
Ans : (C)

3. A photo-electric cell converts–
(A) sound