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रविवार, 21 मई 2017

Science GK, Gk Question Answer, General Knowledge Question Answer, Science General Knowledge @

Science GK, Gk Question Answer, General Knowledge Question Answer, Science General Knowledge @

1. Which was the first satellite to be sent into space? – Sputnik
2. In order of their distances from the Sun, which planet lie between Mars and Uranus? – Jupiter and Saturn
3. Which two planets of the solar system have no satellites? – Mercury and Venus
4. In 1610, Galileo Galilei discovered four moons of which planet? – Jupiter
5. Which planet looks reddish in the night sky? – Mars
6. What the twelve constellations to as zodiac? – A group of stars
7. What is the period of one revolution of sun around the centre of galaxy called? – Cosmic year
8. Which is the planet its length of its day and the tilt of its axis are almost identical to those of the earth? – Mars
9. Which planet have thirteen moons? – Neptune
10. Who discovered the laws of planetary orbits? – Johannes Kepler
11. To a space traveller on moon, how does the lunar sky during day time appear? – Black
12. NASA’s Deep Impact space mission was employed to take detailed pictures of which comet nucleus? – Tempel 1
13. How is Albedo defined? – The amount of insolation reflected back to the space by the top of atmosphere, by clouds and ice-covered areas of the fiarth’s surface
14. The largest amount of reflection of the solar radiant energy which is reflected back into space before reaching the earth’s surface why happens this? – clouds
15. The incoming short-wave solar radiation is balanced by an equal amount of long-wave radiation from earth going back to space. What is this? – Heat balance of earth
16. Two cars, passing each other at high speed, are in danger of side swiping why? – Because of decrease in air pressure in the space between them
17. When an electric bulb breaks, why is there a mild bang? – Due to the air rushing in to fill the evacuated space
18. To an astronaut, how does outer space appear? – Black
19. What is the difference between explosion and combustion? – That there is rapid increase of pressure in confined spaces in case of an explosion, but no such change occurs during combustion
20. It has been observed that astronauts lose substantial quantity of calcium through urine during space flight. Why is this? – Due to microgravity
21. Which celestial body besides earth bear, The Sea of Tranquility’ and The Ocean of Storms’ ? – Moon
22. Which planet take maximum time for one revolution around the Sun? – Jupiter
23. When will the Smith-tuttle comet crash with Earth? – In 2116 AD
24. Which is the hottest planet? – Venus
25. Which planet is known as the ‘Watery Planet’ ? – Earth
26. The light coming from stars gives the idea of their which quality? – Temperature
27. What is the outermost layer of Sun called? – Corona
28. Comets revolve around which body? – Sun
29. Which gas is most predominant in the Sun? – Hydrogen
30. Which planet of the solar system spins on its axis at the fastest rate? – Jupiter

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