Question

If \( i \) is the intensity of rain (cm/hr), \( f \) is the rate of infiltration (cm/hr), and \( f_c \) is infiltration capacity (cm/hr), then the maximum rate at which soil can absorb water is:

• A. \( f = i \) when \( i<f_c \)
• B. \( f \leq i \) when \( i>f_c \)
• C. \( f<i \) when \( i>f_c \)
• D. \( f \geq f_c \) when \( i = f_c \)

Hint:

When rainfall exceeds infiltration capacity, runoff occurs.

Answer 1

The Correct Option is B

Step 1: Understanding Infiltration
Infiltration is the process by which water enters the soil.
Step 2: Evaluating the Given Conditions
- If \( i<f_c \), the soil absorbs all rainwater. - If \( i>f_c \), infiltration is limited to \( f_c \), meaning \( f \leq i \).