Practice General science Common Questions and Answers

• The absolute zero is a temperature at which -
• An aircraft can perform aerobatic manoeuvres in a vertical loop because of-
• To measure the speed of an approaching car a police officer shines –
• Lakes freeze in cold countries in winter, leaving the water underneath at –
• 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
• A concave lens always forms an image which is –
• 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 –
• "Tice splitting of different colours of light in a prism 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 –
• Two waves, each of amplitude 1.5 mm and frequency 10 Hz, are travelling in opposite direction with a speed of 20 mm/s. The distance in mm between adjacent ...
• 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 :