The largest and the shortest distance of the earth from the sun are
The largest and the shortest distance of the earth from the sun are r1 and r2 , its distance from the sun when it is at the perpendicular to the major axis of the orbit drawn from the sun
(a) r1 + r2 /4 (b) r1 r2/ r1 + r2
(c) 2 r1 r2/ r1 + r2 (d) r1 + r2 /3
Answer: c
(10)