Top 1000+ Solved Physics MCQ Questions Answer
Q. Curie point is the temperature at which
a. Matter becomes radioactive
b. A metal loses magnetic properties
c. A metal loses conductivity
d. Transmutation of metal occurs
Q. Which of the following is true regarding Newland’s Law of Octaves?
a. It worked well with only lighter elements.
b. It was applicable only up to calcium.
c. Both are correct
d. Both are incorrect.
Q. When a bottle of perfume is opened in one corner of a room the smell spreads soon throughout the room. This is an example of -
a. surface tension
b. capillarit
c. viscosity
d. diffusion
Q. The material used in the fabrication of a transistor is –
a. Aluminium
b. Copper
c. Silicon
d. Silver
Q. If there is a circular hole in a metal plate, what happens to the radius of the hole when the plate is heated?
a. Increases
b. Decreases
c. Unchanged
d. Depends upon the metal
Q. Radio activity is due to –
a. unstable nucleus
b. stable nucleus
c. stable electronic configuration
d. stable electronic configuration
Q. Which conservation principle is applicable in the case of the motion of a rocket?
a. Conservation of mass
b. Conservation of charge
c. Conservation of momentum
d. Conservation of energy
Q. A gap is left between two rails of a railway track to accommodate of the metal.
a. areal expansion
b. volume expansion
c. liner expansion
d. apparent expansion
Q. If an ordinary glass tube and a glass capillary tube are 'both clipped in a beaker of water, water rises in –
a. both
b. only the glass tube
c. only the capillary tube
d. neither
Q. Optical fibres are based on the phenomenon of –
a. Interference
b. Dispersion
c. Diffraction
d. Total Internal Reflection
Q. Who was the inventor of frozen foods?
a. Alfred Nobel
b. Clarence Birdseye
c. Frank Whittle
d. Ives McGaffey
Q. The clouds float in the atmosphere because of their low:
a. temperature
b. velocity
c. pressure
d. density