When a ship enters the sea from a river?
(A) rises up
(B) falls down
(C) There is no change in its level
(D) All of the above
What is the reason that the ball bounces higher at a higher place?
(A) Because the air pressure is higher at higher places than at the plains
(B) Because the atmosphere is sparse at high places, the ball faces less resistance
(C) Because the force of gravity is low at high places
(D) Because the atmosphere is pure at high places
When sunlight passes through a prism, which of the following colors has the highest refraction?
(A) Blue
(B) Red
(C) Orange
(D) Green
When a man enters a dark room with light, he sees nothing for some time. Later he begins to appear, because?
(A) The iris of his eye shrinks
(B) The iris of his eye spreads
(C) The distance between the lens and retina of his eye increases
(D) The length of his eye lens increases
The rolling ball stops itself after rolling away for some reason, which of the following reasons?
(A) Frictional force
(B) gravity
(C) Inertia
(D) None of the above
Which gas is used to purify pond water in cities?
(A) Sulfur dioxide
(B) Chlorine
(C) Nitrogen
(D) Ammonia
Get the Examsbook Prep App Today