set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

If an unsaturated sugar solution is prepared by mixing 100 grams of sugar with half litre of water, which of the following physical quantities will not change?

a) Density

b) Concentration

c) Mass

d) Volume

Question : 2

A stretched rubber has

a) increased potential energy

b) increased kinetic energy

c) decreased kinetic energy

d) decreased potential energy

Question : 3

Which of the following is the byproduct derived from the refining process of petroleum?

a) Charcoal

b) Coal

c) Petrol

d) Asphalt

Question : 4

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 : 5

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 : 6

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