Question

How much solar energy which falls on the periphery of the atmosphere actually reaches the surface of the earth?

• A. $35\%$
• B. $40\%$
• C. $47\%$
• D. $62\%$

Answer 1

The correct option is C

$47\%$

1. About $47\%$ solar energy which falls on the periphery reaches the surface of the Earth. While rest of the energy is reflected back into the space by the thick blanket-like atmosphere covering the earth.
2. Therefore, about $47\%$ energy reaches the earth's surface.
3. Hence, option C is the correct answer.