Question

If the gravitational force is proportional to rn, then the time period of the planet is directly
proportional to - (r - mean distance)
[ ]
a) rn/2
b) r1+12
c)
0/3
d)
+2/3
2.
4.
5.
A Saturn year is 27 times the earth year. How far is the saturn from the sun if the earth is
1.5 x 108km away from the sun.
a) 1.35 x 10km b) 1.35 x 108 km c) 1.35 x 10°mD d) 1.35 x 10ºm
The ratio of time periods of two planets around the sun is 1 : 8 the ratio of mean distances from
planets to sun is
[ ]
a) 1:8
b) 8:1
c)1:2
d) 2:1
If the ratio of mean distances of planets with their sun is 4:9, then the ratio of time periods of the
two planets around the sun is
[ ]
a) 2:3
b) 3:2
c) 4:9
d) 8:2
According to Kelpers, the period of revolution of a planet (T) and its mean distance from the sun
R are related by the equation
[ ]
a) T R = constant b) T² R' = constant c) T-R-3 = constant d) TR2 = constant
As the distance of a planet from the sun increases, then the time period of revolution of the
planet
[ ]
a) increases
b) decreases
c) constant
d) none
As the distance of a planet from the Sun decreases, then the time period of revolution of the
planet
[ ]
a) increases
b) decreases
c) constant
d) none​

Answer 1

Answer:

idk

Explanation:

lol