Question

The distance of two planets from the sun are 10^14 m and 10^9 km respectively. The ratio of their time periods around the sun is
(1) 10 : 1

(2) 1000 : 1

(3) 10Root10 :1

(4) Root10 :1

CHAPTER.. GRAVITATION
CLASS 11TH​

Answer 1

Explanation:

3) 10Root10 :1

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Answer 2

Answer:

By Kepler's law T

2

∝r

3

or,

T

2

T

1

=(

r

2

r

1

)

3/2

T

2

T

1

=(

10

12

10

13

)

3/2

T

2

T

1

=10

10