Top 1000+ Solved Physics MCQ Questions Answer
Q. The time period of a pendulum when taken to the Moon would:
a. remain the same
b. decrease
c. become zero
d. increase
Q. Pieces of camphor placed on water move about rapidly. This is because of -
a. diffusion
b. viscosity
c. surface tension
d. capillarity
Q. Lightning is caused due to –
a. electric power
b. electric discharge
c. electric leak
d. electric pressure
Q. Sprayer functions on –
a. Bernouli’s principle
b. Archeinecle's principle
c. Pascal's law
d. Floatation principle
Q. Waves that are required for long distance wireless communication are –
a. Infrared rays
b. Ultraviolet rays
c. Radio waves
d. Microwaves
Q. Rise of oil a wick is due to –
a. density of the oil
b. viscosity of the oil
c. surface tension of the oil
d. pressure of the oil
Q. Heat stored in water vapour is –
a. specific heat
b. latent heat
c. absolute heat
d. relative heat
Q. The layer of atmosphere used for radio- wave transmission is –
a. chromosphere
b. troposphere
c. ionosphere
d. stratosphere
Q. The important unit of a microprocessor is –
a. ALU
b. array of registers
c. control unit
d. All of the above
Q. Which one of the following is an element of weather?
a. Wind
b. Temperature
c. Humidity
d. All options are correct
Q. A periscope works on the principle of
a. refraction
b. total internal reflection
c. diffraction
d. reflection
Q. A copper disc has a hole. If the disc is heated, the size of the hole -
a. increases
b. decreases
c. No change
d. first increases and than decreases
Q. Water cannot be used to extinguish fire caused by electric current, because –
a. it may cause electrocution
b. it may cause hydrolysis
c. it may cause electrolysis
d. it may spoil the wiring