Top 1000+ Solved Physics MCQ Questions Answer
Q. The radiation initially produced in fluorescent tube is –
a. infrared
b. ultraviolet
c. microwaves
d. X-rays
Q. The 'four stroke petrol engine' is based on –
a. Carnot-cycle
b. Otto-cycle
c. Diesel-cycle
d. Boyle's-cycle
Q. The device which transfer the signal from low resistance region to high resistance region is –
a. diode
b. transistor
c. capacitor
d. inductor
Q. A rubber ball is dropped from a height of 2 metres. To what height will it rise if there is no loss of energy/velocity after rebounding?
a. 4 metres
b. 3 metres
c. 2 metres
d. 1 metre
Q. The atmospheric air is held to the Earth by –
a. gravity
b. winds
c. clouds
d. rotation of the Earth
Q. In which of the following processes is energy released?
a. Respiration
b. Photosynthesis
c. Ingestion
d. Absorption
Q. Atomic power plant works on the principle of –
a. Fission
b. Fusion
c. Thermal combustion
d. Combined effect of all the above three
Q. Which of the following circuit elements is used to 'block' DC in an electronic circuit?
a. Resistances
b. Capacitance
c. Inductance
d. Diode
Q. Spectacles used for viewing 3D films have –
a. Bifocal lens
b. Convex lens
c. Concave lens
d. Polaroid
Q. Which of the following has got more heat capacity?
a. Iron piece
b. Water
c. Gold piece
d. Benzene
Q. Which of the following statements is true when we see 'rainbow'?
a. We face sun and raindrops
b. 11 Km/Sec.
c. In light rainfall, we face Sun
d. The sky remains clear and the sun is at lower position in the sky
Q. If the temperature of a place increases suddenly, the relative humidity –
a. Increases
b. Decreases
c. Remains constant
d. Fluctuates
Q. Pulsars are :
a. stars moving towards the Earth
b. stars moving away from Earth
c. rapidly spinning stars
d. high temperature stars
Q. Tungsten is used for the manufacture of the filament of an electric bulb, because –
a. It is a good conductor
b. It is economical
c. It is malleable
d. It has a very high melting point
Q. What is the wavelength of visible spectrum?
a. 1300 A° -3000 A°
b. 3900 A° - 7600 A°
c. 7800 A° - 8000 A°
d. 8500 A° - 9800 A°