The table below contains data about the planets of the solar system, including their orbit periods. The orbit period is the time required for the planet to complete one revolution (orbit) around the sun.
Table: Planetary Data
Planet | Mass, m (kg) | Radius, r (m) | Distance from the Sun, R (m) |
Mercury | |||
Venus | |||
Earth | |||
Mars | |||
Jupiter | |||
Saturn | |||
Uranus | |||
Neptune | |||
Pluto |
(i) One Jupiter year is equal to approximately how many earth years?
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Ans.
(i)
Sol. T ∝ R 3/2 , T J = T E 
= T E 
≈ 11 T E
(ii)
Sol. v = 
(R = distance of planet from surface of earth).
(iii)
Sol. 
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