Question

The height of a hydraulic jump in the stilling pool of 1:25 scale model was observed to be 10 cm. The corresponding prototype height of the jump is

• A. not determinable from the data given
• B. 2.5 m
• C. 0.5 m
• D. 0.1 m

Answer 1

The correct option is B 2.5 m

$L_r=\frac{L_m}{L_p}=\frac{1}{25}$

$\Rightarrow L_p=L_m\times 25$
$\Rightarrow L_p=10\times 25$
$=250$ cm
$=2.5$ m