Less dew is formed on cloudy nights because
there is no moisture in the atmosphere
clouds absorb the falling dew
objects emit radiant energy very fast on such nights
objects lose less radiant energy
- A man stands on the pan of a balance holding a fish in his right hand and bucket of water in his left…
- When a light ray is reflected repeatedly by a set of parallel plane mirrors, the intensity of light…
- Cosmic rays contain
- The period of a geostationary (synchronous) satellite orbiting the earth over the equator la
- Like magnetic poles
- The planet that is known as earth's twin is
- In very cold countries alcohol is used as a thermometric liquid because
- Nuclear fission process means
- The planet with the reddish tinge is
- The device used to record the sound is
- The attraction between similar molecules is called
- The SI unit of electric current is
- The colour of a star is an indication of its
- A workman was working on a rail track. A young boy at a distance holds his ear close to the railway…
- The radiator in a car serves to
- The first Indian Satellite launched from a Russian Cosmodrome on April 16, 1975 was named
- Ultrasonic waves are used
- The mixing up of two gases as a result of random motion of molecules is called
- A series of east moving still pictures can be made to appear as a moving picture because the eye
- Increase in pressure
- In a refrigerator, the refrigerant is
- In a vacuum the following three articles are dropped at the same time and from the lame height. Which…
- Fish and other aquatic creatures can live inside a deep frozen pond because
- A man Jumping out of a moving train is thrown
- When the resistance of a circuit increases the current will
- Metals are good conductors of heat because
- The overhead wires supported by high towers in the grid system carry
- Which physical quantity is measured in watts
- The heat produced in a conductor due to the passage of a current through it is proportional to
- Two tumblers stuck together can be separated by