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PhysicsGravitationKepler's LawMedium2 minPYQ_2024

PhysicsMediumsingle choice

The distance between Sun and Earth is $R$ . The duration of year if the distance between Sun and Earth becomes $3 R$ will be:

Options:

Answer:

Solution:

Basically 1 year is equal to time period of earth revolution around sun. So, $T_{i} = 1$ year Now, $T^{2} \propto R^{3}$ $∴ (\frac{T _{2}}{T _{1}})^{2} = (\frac{R _{2}}{R _{1}})^{3}$ $\Rightarrow T_{2} = (\frac{R _{2}}{R _{1}})^{3/2} T_{1} = (\frac{3 R}{R})^{3/2} \times 1$ $= 33$ years.

Stream:BITSATSubject:PhysicsTopic:GravitationSubtopic:Kepler's Law

⏱ 2mℹ️ Source: PYQ_2024

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