Sunday, 15 April 2018

Space and Universe

Space and Universe


Under the important questions on Space and Universe a set of 30 questions with solution is given below. Since the most questions asked in the previous years are asked in the successive years again in different exams. Therefore, the study of these questions is the most necessary. All these questions are being given in the form of Space and Universe notes with one liner answer.


1. To a space traveller on moon, how does the lunar sky during day time appear? – Black
2. NASA’s Deep Impact space mission was employed to take detailed pictures of which comet nucleus? – Tempel 1
3. 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
4. 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 
5. 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 
6. 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 
7. When an electric bulb breaks, why is there a mild bang? – Due to the air rushing in to fill the evacuated space 
8. To an astronaut, how does outer space appear? – Black 
9. 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 
10. It has been observed that astronauts lose substantial quantity of calcium through urine during space flight. Why is this? – Due to microgravity 
11. Which was the first satellite to be sent into space? – Sputnik 
12. In order of their distances from the Sun, which planet lie between Mars and Uranus? – Jupiter and Saturn 
13. Which two planets of the solar system have no satellites? – Mercury and Venus 
14. In 1610, Galileo Galilei discovered four moons of which planet? – Jupiter 
15. Which planet looks reddish in the night sky? – Mars 
16. What the twelve constellations to as zodiac? – A group of stars 
17. What is the period of one revolution of sun around the centre of galaxy called? – Cosmic year 
18. Which is the planet its length of its day and the tilt of its axis are almost identical to those of the earth? – Mars 
19. Which planet have thirteen moons? – Neptune 
20. Who discovered the laws of planetary orbits? – Johannes Kepler 
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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