Answer:
Option (4)
Explanation:
Here, Speed of light=
Km/sec
Distance=
Km
We know that,




=500 sec
=8 minutes 20 sec
Hence, the correct answer is option (4) i.e 8 minutes.
Answer:

Explanation:
Angular momentum, L = m v r
areal velocity = 
according to kepler's 2nd law

since, we know that

areal velocity= 
now substituting value of v in areal velocity we get

hence from above equation of rate of change of area swept i.e. areal velocity is proportional to 
The terrestrial planets are closer to the sun, they are smaller that the jovian planets, they have less moons, and do not have a lot of gases on the surfaces. The jovian planets are farther away from the sun, they are much bigger than the terrestrial planets, have a lot of moons, at least two planets are gas giants, and at least two have rings, and they have more gases. Temperatures can be a difference too.
Yes u are correct its C and good explanation