Top 1000+ Solved Physics MCQ Questions Answer
Q. A decibel is –
a. A musical instrument
b. The wavelength of noise
c. A musical note
d. A measure of sound level
Q. The type of mirrors used in theheadlamp of cars is –
a. Parabolic concave
b. Plane
c. Spherical convex
d. Cylindrical concave
Q. If lift is going up with acceleration, the apparent weight of a body is -
a. may be more or less than true weight
b. equal to the true weight
c. less than the true weight
d. more than the true weight
Q. The rate of transfer of charges througha circuit is called?
a. Potential Difference
b. Resistance
c. Current
d. Energy
Q. When a vibrating tuning fork is placed on a table, a loud sound is heard. This is due to –
a. reflection
b. refraction
c. forced vibrations
d. damped vibrations
Q. Mud houses are cooler in summers and wanner in winters as compared to brick houses because
a. mud is a good conductor
b. mud is a bad conductor
c. mud is a poor insulator
d. evaporation of water causes cooling in summers and sunlight coming through holes causes warming in winters
Q. Electricians use rubber gloves while working because -
a. rubber is an insulator
b. rubber is a good conductor
c. wearing rubber gloves is mandatory
d. rubber makes work easy
Q. When a person sitting on a swing stands up on the swing, the frequency of oscillation –
a. decreases
b. increases
c. becomes infinite
d. does not change
Q. Night photography and photopraphy in mist and fog are possible using –
a. ultra-violet radiation
b. infra-red radiation
c. microwave radiation
d. gamma radiation
Q. An Athlets runs before long jump to get advantage on –
a. Inertia of motion
b. Frictional force
c. Moment of a force
d. Principle of moments
Q. In sunlight, a rose appears red. In greenlight, the same rose appears –
a. red
b. black
c. green
d. yellow
Q. Sir C.V. Raman was awarded Nobel Prize for his work connected with which of the following phenomenon of radiation?
a. Scattering
b. Diffraction
c. Interference
d. Polarization
Q. Removal of carbon particles from air involves the principle of -
a. Precipitation
b. Filteration
c. Electrophoresis
d. Sedimentation