General Awareness -Physics

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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.

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