Question

1 AU is equal to

• A. $1.5\times {10}^{11}m$
• B. $1.5\times {10}^{10}m$
• C. $1.5\times {10}^{9}m$

Answer 1

The correct option is A

$1.5\times {10}^{11}m$

1. Astronomical unit (AU) is the average distance between sun and earth.
2. 1 AU = $1.5\times {10}^{11}m$

Hence option(a) is correct.