Top 1000+ Solved Physics MCQ Questions Answer
Q. Which colour of light shows maximum deviation when passed through a prism?
a. White
b. Red
c. Violet
d. Green
Q. The best material for the core of a transformer is –
a. stainless steel
b. mild steel
c. hard steel
d. soft iron
Q. Electron microscope was invented by –
a. Knoll and Ruska
b. Robert. Koch
c. Lecuwenhock
d. C.P. Swanson
Q. Hydrogen bomb is based on the principle of -
a. Double decomposition
b. Artificial radioactivity
c. Nuclear fission
d. Nuclear fusion
Q. The period of revolution of a geo- stationary satellite is –
a. 365 days
b. 30 days
c. 24 hours
d. changing continuously
Q. The device which converts sound energy into electrical enemy is called –
a. Amplifier
b. Speaker
c. Microphone
d. Transmitter
Q. The light rays used for eliminating bacteria –
a. X-rays
b. infrared rays
c. microwave radiation
d. ultra-violet radiation
Q. The audio signals of TV are –
a. Amplitude modulated
b. Frequency modulated
c. Unmodulated
d. Velocity modulated
Q. Red light is used for signals because it has –
a. long wavelength
b. high intensity
c. high frequency
d. low refraction in the medium
Q. The washing machine works on the principle of -
a. Dialysis
b. Diffusion
c. Reverse osmosis
d. Centrifugation
Q. Which zone of a candle flame is the hottest?
a. Dark innermost zone
b. Outermost zone
c. Middle luminous zone
d. Central zone
Q. 'Hydraulic brakes' work on the principle of –
a. Pascal's law
b. Thomson's law
c. Newton's law
d. Bernoulli's theorem
Q. The instrument for measuring intensity of earthquakes is called –
a. Ediograph
b. Pantagraph
c. Ergograph
d. Seismograph