Question

The wave height, in metres, generated on the surface of a reservoir, having a fetch length F = 30 km, due to wind blowing on the surface of the reservoir at a velocity of 30 km/hr, is

• A. 0.26 m
• B. 0.96 m
• C. 0.52 m
• D. 1.2 m

Answer 1

The correct option is B 0.96 m

Wave height generated on the surface of a reservoir is given by
$h_W=0.032\sqrt{VF}$

$0.032\times \sqrt{30\times 30}$

$=0.96m$

However, it may be noted that the above formula is applicable for F > 32 km in strict terms.