The duty of a crop is 432 ha/cumec when the base period of the crop is 100 days, the delta for the crop will be___ cm.

Correct option is B

We know Δ = (8.64 × B) / D
Where:
Δ: Delta in centimeters (cm)
B: Base period in days
D: Duty in hectares per cumec (ha/cumec)
Given:
D = 432 ha/cumec
B = 100 days
Δ = (8.64 × 100) / 432
Δ = 864 / 432
Δ = 2 m = 200 cm