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The Universe

1.
The smallest planet in the solar system is
  
Answer : C. Mercury
2.
A meteor is
  
Answer : B. a piece of matter which has entered the earth's atmosphere from outer space
3.
The colour of a star is an indication of its
  
Answer : D. temperature
4.
One astronomical Unit is the average distance between the
  
Answer : A. Earth and the Sun
5.
Day and night are the result of
  
Answer : A. earth's rotation around itself
6.
Hubble' is
  
Answer : C. A space telescope

7.
Which one of the following is correctly matched?
  
Answer : B. Venus - Brightest planet
8.
Which is not a terrestrial planet having hard surface?
  
Answer : A. Jupiter
9.
The solar eclipse achieves totality only in limited geographical regions because
  
Answer : A. the size of the shadow of the moon on the earth is small compared to the cross section of the earth
10.
The angle between the moon and the sun would be ____________when measured from earth on a half-moon light
  
Answer : C. 90o
11.
When does a lunar eclipse occur?
  
Answer : B. when the earth comes between the sun and the moon
12.
The planet near to the sun
  
Answer : C. Mercury
13.
The distance between the earth and the sun is maximum when the earth is in
  
Answer : B. aphelion
14.
why the tail of a comet is directed away from the sun?
  
Answer : C. The radiation emitted by the sun exerts a radial pressure on the comet throwing its tail away from the sun
15.
Match List I correctly with List II and select your answer using the codes given below:
List IList II
a) Mars1) A planet with prominent rings around it
b) Mercury2) Planet farthest from the sun
c) Neptune3) Planet closest to the sun
d) Saturn4) Red Planet
  
Answer : C. 4 3 2 1
16.
The solar system belongs the galaxy called
  
Answer : B. Milky way
17.
A lunar eclipse occurs when
  
Answer : B. the earth comes between the sun and the moon
18.
A solar eclipse occurs when
  
Answer : B. the moon comes between the sun and the earth
19.
Consider the following statements: 
A person in a spaceship located half way between the earth and the sun will notice that the ___________ 
i) sky is jet black 
ii) stars do not twinkle 
iii) Temperature out side the spaceship is much higher than that on the surface of the earth
  
Answer : D. I,II and III are correct
20.
Small bodies from interplanetary space when enter into our atmosphere become luminous. These are called
  
Answer : B. Meteors
21.
Consider the following statements: 
Assertion (A ): We see only one side of the moon all the time
Reason (R ): Unlike the earth,the moon does not rotate on its axis
  
Answer : A. A is true , but R is false
22.
sun spots are
  
Answer : D. the magnetic stroms on the surface of the sun
23.
Consider the following statements:
Assertion (A): the brightest planet in the solar system is venus. 
Reason(R ): It is very close to sun. select your answer
  
Answer : C. A is true, but R is false
24.
Which is the correct order of planet from sun
  
Answer : C. Venus, Mars,Jupiter,Uranus
25.
Halley's comet moves in __________ path in its orbit around the earth
  
Answer : C. an elliptical
26.
Lunar eclipse occur
  
Answer : A. on a full-moon day