Top 1000+ Solved Physics MCQ Questions Answer

From 31 to 45 of 1211

Q. The electric charge is stored in a device called:

a. Inductor

b. Capacitor

c. Resister

d. Transformer

  • b. Capacitor

Q. SI unit for the surface tension is         .

a. kg/m2

b. kg/m3

c. N/m

d. kg/m

  • c. N/m

Q. The density of the liquid when heated

a. decreases

b. increases

c. does not change

d. may increase of decrease depending on pressure

  • a. decreases

Q. The distance between node and adjacent antinodes is 30 cm. The wavelength is -

a. 30 cm.

b. 90 cm.

c. 120 cm.

d. 60 cm.

  • d. 60 cm.

Q. When a bar magnet is cut into two equal halves, the pole strength of each piece

a. becomes double

b. becomes half

c. becomes zero

d. remains the same

  • d. remains the same

Q. A new technology which provides the ability to create an artificial world and have people interact with it is called –

a. Televirtuality

b. Virtual reality

c. Alternate reality

d. 3-D reality

  • b. Virtual reality

Q. A proton is identical to           .

a. the nucleus of helium

b. the nucleus of a hydrogen atom

c. an alpha-particle

d. a beta particle

  • d. a beta particle

Q. What should a person on a freely rotating turn table do to decrease his (angular) speed?

a. Bring his hands together

b. Raise his hands up

c. Spread his hands outwards

d. Sit down with raised hands

  • c. Spread his hands outwards

Q. In a rechargeable cell what kind of energy is stored within the cell?

a. Electrical energy

b. Potential energy

c. Chemical energy

d. Kinetic energy

  • c. Chemical energy

Q. Which one of the following lenses should be used to correct the defect of astigmatism?

a. Cylindrical lens

b. Concave lens

c. Convex lens

d. Bifocal lens

  • a. Cylindrical lens

Q. Danger signals are generally red as red light –

a. is least bright

b. undergoes least deviation

c. has lowest velocity

d. gives comfort to eye

  • b. undergoes least deviation

Q. A simple microscope consists of :

a. a short focus convex lens

b. a long focus convex lens

c. a short focus concave lens

d. a long focus concave lens

  • a. a short focus convex lens

Q. A passenger standing in a bus is thrown outward when the bus takes a sudden turn. This happens due to –

a. Outward pull on him

b. Inertia of motion

c. Change in momentum

d. Change in acceleration

  • b. Inertia of motion

Q. When pressure is increased the melting point of ice –

a. increases

b. does not change

c. decreases

d. depends on the impurities in the ice

  • c. decreases

Q. What apparatus is used to locate a submerged object?

a. Radar

b. Sonar

c. Quasar

d. Pulsar

  • b. Sonar
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