Practice General science Common Questions and Answers

• Which of the following is most elastic?
• The instrument used to measure the speed of the wind is –
• Light from the Sun reaches us in nearly
• One can distinguish a telescope from a microscope by observing –
• In a nuclear reactor, one of the following is used as a fuel.
• Suns heat reaches us by –
• A colour-blind person cannot –
• If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same -
• If a metal can be drawn into wires relatively easily it is called:
• At what temperature a body will not radiate any heat energy?
• Stereo was invented by                .
• The density of the liquid when heated
• Electrostatic precipitator is used to control the pollution of –
• The device which converts AC to DC is
• The radiation initially produced in fluorescent tube is –
• The device used for locating submerged objects under sea is –
• Heat from the sun reaches earth by the process of –
• Bolometer is used to measure –
• A circular plate, a cube and a sphere, all made up of same material and having the same mass, are heated to 300°C and left in a room. Which of them will h...
• Noise is measured in –
• If ice floating on water in a vessel melts, the water level in the vessel     .
• Which colour is the complementary colour of yellow?
• The sky appears blue because of –
• The temperature which has the same reading on both Fahrenheit and Celsius scales is –
• Kilowatt-hour is the unit of :
• Tear gas used by the police to disperse the mob contains –
• Necessary element of change in solar energy to electric energy –
• A person is hurt on kicking a stone due to –
• `Short-sight' in human eye can be corrected by using proper –
• What is the reason for twinkling of stars?
• A man cannot see clearly beyond 10 meters. The disease he suffers from :
• When milk is churned, the cream separates from it clue to:
• The process of union of two or more molecules of a substance to form a large single molecule is called :
• The period of revolution of a geo- stationary satellite is –
• ‘Therm’ is the unit of –
• A metal plate with a circular hole at the centre is heated. What will happen to the area of the hole?
• Stars in the sky appear to twinkle due to –
• Intensity of gravitational field of earth is maximum at –
• The spokes used in the wheel of a bicycle increase its –
• The oldest type of energy known to man is –