set 2 MCQ Questions & Answers Detailed Explanation

Question : 1

While floating in a sea what part of an iceberg is above the surface of the sea?

a) 1/10

b) 1/6

c) 1/9

d) 1/4

Question : 2

Consider the following statement. If there were no phenomenon of capillarity.

1. It would be difficult to use a kerosene lamp then.
2. One would not be able to use a straw to consume a soft drink.
3. The blotting paper would fail to function.
4. The big trees that we see around would not have grown on the Earth.

a) Only 1, 3 and 4

b) Only 2 and 4

c) Only 1, 2 and 3

d) Only 1, 2, 3 and 4

Question : 3

Pressure at a point inside a liquid does not depend on

a) the nature of the liquid

b) the depth of the point below the surface of the liquid

c) the acceleration due to gravity at that point

d) the shape of the containing vessel

Question : 4

With the rise of temperature, the viscosity of liquid

a) Decreases

b) Remains unchanged

c) Increases

d) May increase or decrease depending on nature of liquid

Question : 5

While travelling by plane, the ink of the pen starts to come out

a) Due to increase in air pressure

b) Due to increase in volume of ink

c) Due to decrease in air pressure

d) Due to excessive load

Question : 6

A tank filled with water has a hole at a certain height from its bottom. The volume of water emerging out per second from the hole does not depend on

a) the area of a hole.

b) the height of the level of liquid above the hole.

c) the density of a liquid.

d) the acceleration due to gravity.