* Reflection is a phenomenon of bouncing back of light when a beam of light falls on a surface.
* Refraction is the bending of light when a ray of light travels from one medium to another.
*Due to change of medium, the phase velocity of the wave is changed but its frequency remains constant
*When a scale is immersed in a glass of water, it seems to be bended due to - refraction.
*Star appears to be twinkling due to -Refractio................
*The branch of science concerned with the nature and properties of matter and energy
Ans : Physics
*Branches of physics are Dynamics,Thermody namics, Mechanics, Optics, Acoustics, Electronics, Astrophysics, Nuclear physics.

*Anything that possesses weight and occupies space is - Matter
*7 states of matter Solid, Liquid, Gas, Plasma, Bose Einstein Condensate, Fermionic................
Basic G.K (India)
*Highest peak - Mt.K2 (Godwin Austin)
*Highest Stone Tower - Qutub (Qutb) Minar  
*Highest Multiple Arch dam - Idukki (Kerala)
*Highest polling Booth - Hikkim (Himachal Pradesh)
*Highest Lake - Cholamoo Lake 
*Longest River Barrage - Farakka Barrage I 
*Longest Canal - Indira Gandhi Canal
*Longest Glacier - Siachen Glacier
*Longest Bridge - Bandra - Warli(Rajiv Gandhi sealink, Mumbai)[/b................
Basic G.K. (World)
*Largest continent - Asia
*Largest ocean - Pacific Ocean
*Largest sea - South China Sea
*Largest inland sea - Mediterranean sea
*Longest river - Nile
*Largest river - Amazon
*Largest river basin - Amazon
*Largest salt water lake - Caspian Sea 
*Largest freshwater lake - Lake Baikal (by volume)
*Lake Superior (by surface area) 
*Largest archipelago - Indonesia 
*First film makers in the history
Ans : Lumiere Brothers (Auguste Lumiere,Louis Lumiere)
*Father of Modern Cinema
Ans : David Griffith
*Father of Cartoon Cinema 
Ans : Walt Disney
*The Mecca of World Cinema
Ans : Hollywood
*The Capital of World Cinema
Ans : California (America)
*35mm film was invented in 1889 by
Ans : Edison
*The film showed inmost number of countri................
*The literature includes fiction, non-fiction, fables, travelogues, poetry etc.
*The creative writings of an author from imagination
Ans : Fiction 
*Writings about real life
Ans : Non fictions 
*The examples of Non-fiction
Ans : History, Biography, Autobiography, Essays 
*‘Fable’ is a moral story.
*The travelling experience of an author 
Ans : Travelogues
*Lengthy narrative poem, ordinarily concerning the deeds of a................
*Important paintings of Leonardo da vinci.
*Mona Lisa
*The Last Supper
*The Virgin of Rocks
*The Mona Lisa painting is kept now in  
Ans : Louvre Museum, Paris
*The painter who is called “Christ of the coal mines”
Ans : Vincent Van Gogh 
*Important paintings of Vincent Van Gogh
*The Starry Night
*The Potato Eaters
*The Red Vineyard
*The first artificial satellite in the world
Ans : Sputnik I (4th October 1957)  
*Sputnik I was launched by 
Ans : Russia 
*The first animal sent to space
Ans : The dog name ‘Leika’
*The first man in space
Ans : Yuri Gagarin (Russia)
*The spacecraft in which Yuri Gagarin travelled
Ans : Vostok - 1
*Yuri Gagarin went to space on
Ans : 12th April 1961
*The person who w................
*The study of celestial bodies and the universe)
Ans : Astronomy
*Father of modern Astronomy 
Ans : Copernicus
*Heliocentric theory was put forward by 
Ans : Nicolaus Copernicus
*Solar system was discovered by
Ans : Nicolaus Copernicus
*Geocentric Theory of Earth was put forward by
Ans : Cladius Ptolemy (Astronomer&Astrologer)
*The first person to calculate the circumference of the Earth
Ans : Eratosthenes (Astrono................
*The first country to introduce postal system
Ans : Egypt
*The first country to introduce modern postal system 
Ans : England Which is known as the first ambassador of a state 
Ans :  Postal Stamp 
*The country which has the largest Postal System in the World
Ans : India 
*The first Indian ruler who started postal system 
Ans : Alauddin Khilji 
*In India Postal service was introduc................
First in Internet
*First Malayalam newspaper started its internet edition
Ans : Deepika 
*The first Indian state which provided email facility to all of its Government offices 
Ans : Goa
*First state which started its online lottery 
Ans : Sikkim
*First state in India with all of its Panchayats computerized 
Ans : Tamilnadu
*First paperless government office in India 
Ans : IT Mission
*The ................
*Father of Super computer
Ans : Seymour Cray
*Super computers are used for very complex calculations. Used for the applications in aerospace, oil explorations, geology, molecular dynamics etc.
*PARAM is a series of Super computers developed by C-DAC in Pune under the leadership of Dr. Vijay P. Bhatkar.
*C-DAC was setup in 1988
*First director of CDAC
Ans : Dr. Vijay P. Bhatkar
*Super computer develope................
*Computer is an electronic device that receives data, process it and gives meaningful informations.
*The word ‘computer’ is originated from the Latin words ‘Computus’ and ‘computare’ Collection of facts and figures are called 
Ans : Data
*Processed data is called 
Ans : Information. 
*Information conveys a meaningful message
*A set of actions performed by the computer to convert data into informatio................
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