Top 1000+ Solved Physics MCQ Questions Answer
Q. The instrument which uses sound waves to measure the depth of oceans is –
a. Radar
b. Sonar
c. Altimeter
d. Venturimeter
Q. One Kilowatt hour is equal to—
a. 3.6 Mega Joule
b. 3.8 Mega Joule
c. 3.2 Mega Joule
d. 4.0 Mega Joule
Q. Electrostatic precipitator is used to control the pollution of –
a. air
b. water
c. noise
d. thermal
Q. What is the minimum escape velocity of rocket to be launched into space?
a. 5 Km/Sec.
b. 6 Km/Sec.
c. 11 Km/Se
d. 15 Km/Sec.
Q. Which combination of colour is the most convenient during day and night time?
a. Organe and blue
b. While and black
c. Yellow and blue
d. Red and green
Q. The instrument that measures and records the relative humidity of air is –
a. Hydrometer
b. Hygrometer
c. Lactometer
d. Barometer
Q. In a Laser (say neon laser) all the atoms emit the light waves of –
a. Same frequency
b. Same amplitude
c. Same phase
d. All of the above
Q. Which of the following celestial bodies contains abundant quantities of helium-3, a potential source of energy?
a. Earth
b. Moon
c. Venus
d. Saturn
Q. Smog is a combination of –
a. Air and water vapours
b. Water and smoke
c. Fire and water
d. Smoke and fog
Q. When white light passes through a glass prism we get a spectrum on the other side of the prism. In the emergent beam the ray which is deviated least is -
a. the violet ray
b. the red ray
c. the green ray
d. the blue ray
Q. Study of life in outer space is known as-
a. endbiology
b. exobiology
c. enterbiology
d. neobiology