1.

If the earth is one half its present distance from the sun. How many days will be presents one year on the surface of earth will change?

Answer»

Solution :`T_(1)= 365` days , `r_1=r, T_(2)= ?, r_2= r"/"2`
`(T_(2)^(2))/(T_(1)^(2))=(r_(2)^(3))/(r_(1)^(3))`
or `T_(2)=T_(1)*[(R_2)/(r_1)]^(3/2)`
`=365[(r"/"2)/(r )]^(3/2)= 129` days.
Therefore decrease in number of days in one YEAR will be
`=365-129= 236` days.


Discussion

No Comment Found

Related InterviewSolutions