General Knowledge Questions Answer GK Quiz

GK General Knowledge - Physics Question Answer Quiz

Q. When light passes from one medium into another, it suffers a change in -
1) Frequency, wavelength, and speed
2) Frequency and speed
3) Wavelength and speed
4) None of the above

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Q. Which is the smallest possible unit of a chemical compound?
1) Atom
2) Molecule
3) Proton
4) Photon

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Q. Combustion of the candle is a/an -
1) Exothermic reaction
2) Photochemical reaction
3) Physical change
4) Endothermic reaction

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Q. Light energy is converted into chemical energy by -
1) Electrolysis
2) Respiration
3) Transpiration
4) Photosynthesis

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Q. The most commonly used semi-conductive material is -
1) Germanium
2) Silicon
3) Carbon
4) Sulphur

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Q. What should be the characteristics of an electric-fuse wire?
1) High melting point, high specific resistance
2) Low melting point, low specific resistance
3) High melting point, low specific resistance
4) Low melting point, high specific resistance

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Q. Very High Frequency (VHF) has -
1) shorter wavelengths
2) shortest wavelengths
3) longer wavelengths
4) longest wavelengths

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Q. A device that converts chemical energy into electrical energy is called -
1) motor
2) generator
3) battery
4) moving-coil meter

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Q. An elastic wave generated by an impulse such as an earthquake or an explosion is called -
1) sound wave
2) epicentre
3) tectonic shift
4) seismic wave

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Q. With what do you divide thrust in a liquid to obtain the value of pressure?
1) Area
2) Density
3) Mass
4) Volume

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