Top 1000+ Solved Physics MCQ Questions Answer
Q. The sparkling of a diamond is due to –
a. total internal reflection of light
b. interference of light
c. polarisation of light
d. refraction of light
Q. Which of the following is a good conductor of heat but a bad conductor of electricity?
a. Celluloid
b. Rubber
c. Asbestos
d. Mica
Q. A piece of wood is held under water.The up thrust on it will be:
a. equal to the weight of the Wood
b. less than weight of the wood
c. more than weight of the wood
d. Zero
Q. In MRI machine, which one of the following is used?
a. Sound wave
b. X-ray
c. Ultra-sound wave
d. Magnetic wave
Q. For a person having hypermetropia,the near point is –
a. greater than 25 cm
b. greater than 50 cm
c. less than 25 cm
d. infinity
Q. Amount of water vapour in theatmosphere is measured in terms of –
a. Humidity
b. Droplets
c. Smog
d. All of the above
Q. Name the process of production ofenergy in the Sun –
a. Nuclear fission
b. Radioactivity
c. Nuclear fusion
d. Ionization
Q. The ozone hole that has been detected lies in the atmosphere above –
a. Arctic Ocean
b. Antarctica
c. India
d. Alaska
Q. The device used to change the speed ofan electric fan is –
a. Amplifier
b. Regulator
c. Switch
d. Rectifier
Q. Which one of the following wavelengths of light is most effective inphotosynthesis?
a. Blue
b. Green
c. Orange
d. Yellow
Q. Why is it difficult to breathe at higheraltitudes?
a. Due to low air pressure
b. Due to low temperature
c. Due to ozone
d. Due to high humidity
Q. The reason for a swimming pool toappear less deep than the actual depth is –
a. Refraction
b. Light scattering
c. Reflection
d. Interference
Q. Alternating current is converted intodirect current by a –
a. Transformer
b. Dynamo
c. Oscillator
d. Rectifier
Q. Remote-sensing device has an inbuiltsource of –
a. X-ray
b. g-ray
c. Ultraviolet ray
d. Infrared ray