Question

(e)
By considering first coorelation complete the second correlation:
Twinkling of stars : Atmospheric refraction:: Spectrum :​

Answer 1

Answer:

duck hub CT y UC CD t CA y hallmark muscles

Answer 2

Explanation:

1. stars are self luminous and can be seen at night in the absence of sunlight.
2. they appear to be point source as they are at a very large distance from us.
3. the apparent position of the star keeps changing a bit because of the motion of atmospheric air and changing air density and temperature.
4. because of this, refractive index of air keeps changing continuously .
5. so the position and brightness of the stars keeps changing and so the stars appear to be twinkle.