If the distance between the earth and the sun is half its present value, the number of days in a year would have been

730

No worries! We‘ve got your back. Try BYJU‘S free classes today!

182.5

No worries! We‘ve got your back. Try BYJU‘S free classes today!

129

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

64.5

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C 129
According to Kepler's law of period
$\frac{T_{1}}{T_{2}} = {(\frac{R_{1}}{R_{2}})}^{3 / 2} = {(\frac{R_{1}}{R_{1} / 2})}^{3 / 2} (∵ R_{2} = \frac{R_{1}}{2})$
$= (2)^{3 / 2} = 2 \sqrt{2}$
$∴ T_{2} = \frac{T_{1}}{2 \sqrt{2}} = \frac{365}{2 \sqrt{2}}$ days
$= 129$ days

Suggest Corrections

Similar questions

If the distance between the Earth and the Sun were half its present value, the approximate number of days in a year on the Earth would have been:

If the distance between the earth and the sun were reduces to half its present value, Then the number of days in one year would have been

T^{2} \propto R^{3}

Join BYJU'S Learning Program