Top 1000+ Solved Physics MCQ Questions Answer
Q. Clouds float in the atmosphere because of their –
a. low pressure
b. low density
c. low viscosity
d. low temperature
Q. Which of the following phenomenon is responsible for the movement of water in plants?
a. Pressure difference
b. Concentration difference
c. Transpiration
d. Both (2) and (3)
Q. Which of the following is used to splitwhite light into different colors?
a. Glass slab
b. Convex lens
c. Concave lens
d. Prism
Q. Nuclear reactors used to produceelectricity are based on –
a. Nuclear fission
b. Nuclear fusion
c. Cold fusion
d. Superconductivity
Q. Energy that is produced commerciallyfrom coal is called –
a. Light energy
b. Kinetic energy
c. Thermal energy
d. Potential energy
Q. Which among the following is not acharacteristic of transition metals?
a. Tendency to gain electrons
b. Low electro negativity
c. Low ionization energy
d. Malleability
Q. Which one of the following is not afunction of the liver?
a. Regulation of blood sugar
b. Enzyme activation
c. Detoxiation
d. Reproduction
Q. The source of the Sun's energy is theprocess of –
a. Photoelectric emission
b. Nuclear fission
c. Nuclear fusion
d. Thermionic emission
Q. A boy sitting in a train moving with a uniform velocity drops a coin outside. A man standing outside the train will find the trajectory of the coin to be -
a. a parabola
b. a horizontal straight line
c. a vertical straight line
d. a circle
Q. Solar energy is converted into chemical energy during –
a. Transpiration
b. Photosynthesis
c. Diffusion
d. Osmosis
Q. Decibel is the unit used for –
a. Speed of light
b. Intensity of heat
c. Intensity of sound
d. Radio wave frequency
Q. The term ‘Isoneph' indicates the linesof equal –
a. cloudiness
b. salinity
c. rainfall
d. pressure
Q. Fibre optics work on the principle of –
a. Scattering of light
b. Total internal absorption
c. Total internal reflection
d. Optical rotation