1.

If the radius of earth's orbit is made 1//4, the duration of an year will become :

Answer»

4 times
8 times
`1//4` times
`1//8` times.

Solution :`(T_(2))/(T_(1))=((r_(2))/(r_(1)))^(3//2)=((R//4)/(R ))^(3//2)=(1)/(8)`
`RARR T_(2)=(T_(1))/(8)`.
Thus correct CHOICE is (d).


Discussion

No Comment Found

Related InterviewSolutions