Question

If the average terminal velocity of rain drop is 2 ms\(^{-1}\), then the energy transferred by rain to each square meter of the surface at a place which receives 100 cm of rain in a year is

• A. \( 1 \times 10^4 \, \text{J} \)
• B. \( 1 \times 10^3 \, \text{J} \)
• C. \( 2 \times 10^3 \, \text{J} \)
• D. \( 2 \times 10^4 \, \text{J} \)

Hint:

Energy transferred by rain per unit area = \( \frac12 \rho h v^2 \), where \( \rho \) = density of water, \( h \) = rainfall height, \( v \) = terminal velocity.

Answer 1

The Correct Option is C