set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

If two bubbles of soap of different diameter come in contact with a tube, then what will happen?

a) The smaller bubble will become smaller and bigger will become bigger

b) The smaller bubble will become larger and larger will become smaller to get the same size

c) The size of both the bubbles will remain same

d) Both bubbles will burst as soon as they come in contact

Question : 2

The separation of cream from milk by churning is due to

a) Cohesive force

b) Centrifugal force

c) Gravitational force

d) None of the above

Question : 3

A liquid is flowing in a streamlined manner through a cylindrical pipe. Alongwith a section containing the axis of the pipe, the flow profile will be

a)

b)

c)

d)

Question : 4

Fish can survive in a frozen lake because

a) Fish hibernate in ice

b) Water near the bottom does not freeze

c) Fish are warm blooded animals

d) Ice is a good conductor of heat

Question : 5

The bulk modulus for an incompressible liquid is

a) unity

b) zero

c) infinity

d) between 0 and 1

Question : 6

In a capillary tube a fluid rises more as compared to water, it is due to

a) Temperature of fluid is more than that of water

b) Surface tension of fluid is less than that of water

c) Fluid is more viscous than that of water

d) Surface tension of fluid is more than that of water