Top 1000+ Solved Physics MCQ Questions Answer
Q. Quality of a musical note depends on –
a. Fundamental frequency
b. Amplitude of the wave
c. Harmonics present
d. Velocity of sound in the medium
Q. Silicon is used in which of the following?
a. Semiconductors
b. solar energy devices
c. transistors
d. All of these
Q. For photoelectric effect to take place, the metal used as the cathode should have –
a. high melting point
b. low melting point
c. low work function
d. low resistance
Q. If electric resistance is to be decreased, then the number of resistances should be connected in –
a. Series
b. Parallel
c. Mixed arrangement
d. None of these
Q. The direction of heat flow between two objects depends on -
a. Their masses
b. Their heat contents
c. Their temperatures
d. Whether they are in solid, liquid or gaseous state
Q. A man in a train moving with a constant velocity drops a ball on the platform. The path of the ban as seen by an observer standing on the platform is –
a. A straight line
b. A circle
c. A parabola
d. None of these
Q. Which of the following is responsible for permanent hardness of water?
a. magnesium bicarbonate
b. sodium chloride
c. calcium sulphate
d. calcium bicarbonate
Q. While ascending a hill, the driver of the vehicle keeps the gear ratio –
a. equal to 1
b. less than 1
c. greater than 1
d. either equal to or greater than 1
Q. Work done upon a body .
a. only a vector quantity
b. only a scalar quantity
c. both vector and scalar
d. neither vector nor scalar
Q. With the increase of pressure, the boiling point of any substance -
a. Increases
b. Decreases
c. Remains Same
d. Becomes zero