set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

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

Question : 2

The bulk modulus for an incompressible liquid is

a) unity

b) zero

c) infinity

d) between 0 and 1

Question : 3

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 : 4

Working of atomizer is based on

a) Bernoulli’s law

b) Boyle’s law

c) Newton’s laws of motion

d) Archimedes’ principle

Question : 5

Houses far from the municipal water tank find it difficult to get water on the top floor even if their ceilings are lower than the level of water filled in tank. Its reason is

a) pipes are less wide.

b) pipes are more wide.

c) when water flows there is loss of pressure.

d) None of these

Question : 6

An ice cube is floating in a glass of water. What happens to the water level when the ice melts? It

a) Falls

b) Remains the same

c) Rises

d) First rises and then falls