Question

The sun delivers 10³w/m² of electromagnetic flux to the earth's surface. The total power that is incident on a roof of dimension 8m/10m will be

Options

• 2.56 × 10⁴ W

• 6.4 × 10⁵ W

• 4.0 × 10⁵ W

• 1.6 × 10⁵ W

Answer 1

1.6 × 10⁵ W

Explanation:

Total power = salary constant × Area

10³ × (8 × 20) = 1.6 × 10⁵ W