1.

The largest and the shortest of the earth from the sun are r_(1)" and "r_(2). Its distance from the sun when it is at perpendicular to the major axis of the orbit drawn from the sun is

Answer»

`(r_(1)+r_(2))/(4)`
`(r_(1)+r_(2))/(r_(1)-r_(2))`
`(2r_(1)r_(2))/(r_(1)+r_(2))`
`(r_(1)+r_(2))/(3)`

Answer :C


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