Top 1000+ Solved Physics MCQ Questions Answer
Q. In AC circuits, AC meters measure –
a. mean values
b. rms values
c. peak values
d. mean square values
Q. When a light wave is reflected from a mirror, there is a change in its –
a. frequency
b. amplitude
c. wavelength
d. velocity
Q. A body absorbs heat most if it is –
a. black and rough
b. black and smooth
c. white and rough
d. white and smooth
Q. Which of the following is not a vector quantity?
a. Acceleration
b. Electric current
c. Force
d. Velocity
Q. Which one of the following is used for determining the structure of crystal -
a. Gamma rays
b. X-rays
c. UV rays
d. visible light
Q. Water from soil enters into the root hairs owing to :
a. Atmospheric pressure
b. Capillary pressure
c. Root pressure
d. Osmotic pressure
Q. The scientist who first sent electromagnetic waves to distant places is –
a. James Clerk Maxwell
b. Heinrich Hertz
c. Thomas Alva Edison
d. John Logie Baird
Q. Conversion of chemical energy into electrical energy occurs in –
a. atomic bombs
b. dynamo
c. a battery
d. electric heaters
Q. Damp clothes are dried in spin dryers by the action of –
a. centripetal forces
b. centrifugal forces
c. central forces
d. non central forces
Q. Which colour of light shows maximum deviation when passed through a prism?
a. Red
b. Green
c. Violet
d. Yellow
Q. Which of the following is the unit of distance in navigation?
a. Knot
b. Nautical mile
c. Bar
d. Angstrom
Q. The sharpness of a television image is termed as its –
a. Clarity
b. Colour
c. Resolution
d. Graphics