THE UNIVERSE MCQS SET 04

THE UNIVERSE MCQS SET 04

1. Super Nova is : 

(a) an asteroid
(b) a black hole
(c) a comet
(d) a dying star
Ans: (d)
 

2. The altitudes of heavenly bodies appear to be greater than they actually are. This is due to:
(a) vertical motion of these heavenly bodies
(b) motions of the earth
(c) atmospheric refraction
(d) these are visible because of light of the sun reflected from their surface
Ans: (c)
 

3. Match the following:
A. Waxing and waning of moon
B. The coning dark shadow
C. The zone of faint shadow
D. A hollow sphere of infinite radius at the centre of which our earth lies
1. Umbra Zone
2. Penumbra Zone
3. Celestial sphere
4. Phases of the moon
A B C D
(a) 4 1 3 2
(b) 3 1 4 2
(c) 4 1 2 3
(d) 3 2 4 1
Ans: (c)
 

4. The same side of the moon always faces the Earth because: [Railways 1994]
(a) Moon and the Earth have gravitational force
(b) Moon cannot change its position
(c) the period of rotation of the Moon on its axis and period of revolution around' the Earth
is almost the same
(d) the period of rotation of the Moon is not equal to the period of rotation of the Earth
Ans: (c)
 

5. Who of the following discovered the laws of planetary orbits?
(a) Galileo Galilei
(b) Nicholas Copernicus
(c) Johanries Kepler
(d) Isaac Newton
Ans: (c)
 

6. Twelve constellations referred to as zodiac are:
(a) signs of Roman gods
(b) imaginary region that encompass the path of the planets
(c) a group of stars
(d) none of these
Ans: (c)
 

7. The term 'meteor' is applied to an interplanetary body:
(a) after it enters the atmosphere of the earth
(b) after it enters the earth's atmosphere and explodes in mid air as a ball of fire
(c) after it enters the earth's atmosphere and lands on the surface of the earth without exploding in mid-air
(d) before it enters the earth's atmosphere
Ans: (b)
 

8. Which one of the following statements regarding Shooting Stars is incorrect ? 

(a) They are meteors
(b) They are the debris which got separated from a comet
(c) They emit light due to extremely high temperature caused by friction while they are passing through earth's atmosphere
(d) They are a kind of a star
Ans: (d)
 

9. The planets are kept in motion in their respective orbits by :
(a) their great size and spherical shape
(b) the rotation and density
(c) gravitation and centrifugal force
(d) rotation of the sun on its axis
Ans: (c)
 

10. The distance of the nearest star besides the sun from the earth is :
(a) 4.9 x 1111m
(b) 95 x1015 m
(c) 4.3 light years
(d) 4.2 light years
Ans: (d)