Stars twinkle because
...Stars twinkle because
the intensity of light emitted by them changes with time
the distance of the stars from the earth changes with time
the refractive index of the different layers of the earth's atmosphere changes continuously, consequently the position of the image of a star changes with time
the light from the star is scattered by the dust particles and air molecules in the earth's atmosphere
Correct answer is C
No explanation has been provided for this answer.
22688Ra → 222866Rn + X + Energy. The equation above represents a nuclear d...
Which of the following is used for shielding radioactive fallout? ...
A body is said to be moving with uniform acceleration if it experiences equal ...
The process whereby a substance changes from a solid to liquid when heat is applied, is called? ...
A convex mirror is used as a driving mirror because I. its image is erect ...