If the earth be at one half of its present distancefrom the sun. How many approximate days will be there in a year ? (Present year of the 365 days. Assume orbit to be circular)

If the earth be at one half of its present distancefrom the sun. How m

1.	If the earth be at one half of its present distancefrom the sun. How many approximate days will be there in a year ? (Present year of the 365 days. Assume orbit to be circular)
Answer» 365 DAYS 300 days 200 days 129 days SOLUTION :`implies` For earth revolve around the Sun. `T prop R^(3//2)` `:. T_2/T_1 = ((r_1)/(r_2))^(3//2) = (1/2)^(3/2) =1/((8)^(1/8))` `:. T_(2) = T_(1) xx 1/(2.828)` `:. T_(2) = (365)/(2.828) = 129 . 006` `:. T_(2)-= 129 ` days