Practice General science Common Questions and Answers

• "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 :
• 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 –
• An ice block with a piece of lead embedded in it floats in water. If ice melts the water level –
• 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 –
• When a bottle of scent is kept open in a corner of a room its odour is felt in all parts of the room. This is clue to the phenomenon of –
• The sharpness of a television image is termed as its –
• Ohm’s law obeyed in -
• Which of the following is the best conductor of electricity?
• Flight Recorder is technically called :
• The centre of gravity of a sprinter during the race lies –
• Which of the following instruments is used to measure humidity?
• If cream is removed from milk, its density –
• Which of the following is the ratio of Oxygen to Nitrogen in the air?
• The amount of water vapors differs from place to place. Its amount is minimum in which of the following places?
• Which of the following types of coal is called a brown coal among the following?
• Tanya throws a ball vertically upwards, which rise to a height of 60 m. Which of the following statements is NOT correct? [Take g = 10 ms–2] ...