Top 1000+ Solved Physics MCQ Questions Answer
Q. Optical fibre works on the -
a. principle of refraction
b. total internal reflection
c. scattering
d. interference
Q. Gas thermometers are more sensitive than the liquid thermometers because the gases –
a. have large coefficient of expansion
b. are lighter
c. have low specific heat
d. have high specific heat
Q. A man standing on a edge of a cliff throws a stone vertically upwards with a certain speed. He then throws another stone downwards with the same speed. Find the ratio of the speeds of the two stones when they hit the ground.
a. 1 : 1
b. 1 : 2
c. 1 : 4
d. Cannot be found from the given information.
Q. The locomotion of insects to the source of light is called :
a. Phototropic
b. Hydrotropic
c. Phototactic
d. Thermotactic
Q. The splitting of white light into its components is due to:
a. Reflection
b. Refraction
c. Transmission
d. Dispersion
Q. The moment of inertia of a body does not depend upon its –
a. axis of rotation
b. angular velocity
c. form of mass
d. distribution of mass
Q. is the cell organelle, in which the biochemical processes of respiration and energy production occur.
a. Mitochondria
b. Chloroplast
c. Ribosomes
d. Nucleus
Q. Amount of water vapour in a unit volume (Cubic metre) of air is called:
a. Mixed ratio
b. relative humidity
c. absolute humidity
d. specific humidity
Q. Super cooling stands for cooling of a liquid –
a. at freezing point
b. below freezing point
c. at melting point
d. above melting point
Q. Alcohol is more volatile than water because is lower than water.
a. its boiling point
b. its density
c. its viscosity
d. its surface tension
Q. The boiling point of water depends upon the –
a. atmospheric pressure
b. volume
c. density
d. mass
Q. If no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant. Which law states this?
a. Newton first law
b. Newton second law
c. Newton third law
d. Principle of conservation of linear momentum