" 10.Define one astronomical Unit."

Define a Astronomical Unit.

Define astronomical unit.

Define - Astronomical unit?

Define unit

STATEMENT -1 : In summers, the distance of earth from the Sun is less than one astronmical unit, while in winters, it is more than one astronomical unit. and STATEMENT -2 : One astronomical unit is the average distance of earth from the Sun when the earth moves in an ellipitical orbit.

STATEMENT -1 : In summers, the distance of earth from the Sun is less than one astronmical unit, while in winters, it is more than one astronomical unit. and STATEMENT -2 : One astronomical unit is the average distance of earth from the Sun when the earth moves in an ellipitical orbit.

The distance between the sun and earth is one astronomical unit. Find the time taken by the sunlight to reach the earth.

Define astronomical unit (A.U), write its value in metres.