NCERT MCQ ( CLASS 6-12)

 

The universe

 

1.The state of universe before the occurrence of the big bang can correctly described by which of the following terms  ?

(a)  Nebula

(b) Singularity

(c)  Point

(d) Atom

2.which of the following statement with respect to expanding universe hypothesis is/are correct?

(a)  The expanding universe hypothesis was proposed by scientist Edwin Hubble in 1920.

(b) Edwin Hubble provided the evidence that the universe is expanding.

(c)  Both (a) and (b)

(d) Neither (a) or (b)

3. which of the following statement is/are not correct about the state of early universe ?

(a)  The distribution of matter and energy was not even.

(b) Difference in the density led to difference in gravitational force.

(c)  Galaxies started forming by the accumulation of a large cloud of hydrogen gas.

(d) None of the above.

4. which of  the following statement about the state of universe are correct?

1.     The universe is in an expanding state .

2.     The space between Galxies is increasing.

3.     The distance between Galaxies is found to be increasing and thereby, the universe is considered to be expanding.

4.     The formation of universe started allmost 13 billion years ago.

Code

(a)   1 and 2

(b) 2 and 3

(c)  1, 2,and 3

(d) 1,2,3,and 4

5. which of the following statements are correct about the formation of universe?

1.     Before the big bang , the universe was concentrated in a singular form.

2.     The singular atom exploded violently which led to its rapid expansion.

3.     The present rate of expansion of universe is more than its initial expansion.

Code

(a)   1 and 3

(b) 1 and 2

(c)  2 and 3

(d) 1 ,2 and 3