General Awareness -Physics
1-Galileo Galilei discovered the law of inertia.
2-The ability of a liquid to rise by defying gravity is called Capillarity.
3-Gravitational Force the weakest force in the universe .
4- Nuclear Force is the strongest force in the universe.
5-Rate of change of displacement is called as Velocity.
6- Transformer works on the basis of the principle of mutual induction.
7-Gamma rays radiations carry maximum energy.
8-Archimedes is the father of discoveries.
9-Bhabha Atomic Research Centre(BARC) is located at Trombay.
10-Due to interference, Oil or soap film in daylight appears coloured.
11- Soft iron is likely the most powerful electro magnet.
12-The lens used to rectify long sight is convex lens.
13-The hydraulic brackes used in automobiles is a direct application of Pascal’s law.
14-Atom bomb is based on nuclear fission.
15-The principle of Dynamo was discovered by Michael Faraday.
16- Land and sea breezes are due to convection of heat.
17-Pure water freezes at temperature 32 F.
18-Recoil of a gun is an example of conservation of linear momentum.
19-Mesons are found in Cosmic rays.
20-The wavelength of X-rays is of the order of 1 Angstrom.
21- Raman effect involves scattering of light.
22-TV waves are otherwise known as microwaves.
23-Natural radioactivity was discovered by Henry Baquerel.
24- Rainbow is due to refraction and reflection of sunlight by water droplets.
25-The SI unit of intensity of illumination (illuminance) is the lux.
26-RADAR is used for detecting and locating the position of objects such as aeroplanes.
27-When milk is churned cream gets separated due to centrifugal force.
28-A woman’s voice is shriller than man’s voice due to higher frequency.
29-Optical fibre works on the principle of refraction.
30- Solar eclipse will take place when the moon does not lie on the line joining the sun and the earth.