Question

Give scientific reasons for following:
a) apparent position of the stars is different from their real position
b) path of light beam is visible in colloidal solutions
c) In space sky is black
d) sky appears orange red during sunset and sun rise​

Answer 1

Answer:a) Because due to atmospheric refraction the apparent position of star is different than real position.

b)Because the size of particles in colloidal solution is big enough to scatter the beamI light.

c)Because in space there is no atmosphere to scatter the light.

d)This is due to atmospheric refraction. During sunset & sunrise the light having shortest wavelength i.e red falls on earth surface.

Explanation:

Answer 2

Explanation:

a) due parallax

b) colloidal solution has small materials mixture so only it allows light to pass through it

c) In space there no dust particles present over there.... In our atmosphere we have dust particles so only the suns rays get diverged when hit with these dust particles

d) during sunset and sunrise the sun is at almost it's End i.e, Horizon so there rays have to travel longer distance and the longer distance colour in VIBGYOR is travelled by red and orange so the rays enter our eye and it appears to be orange......Thank you