Question

A river whose discharge is ${10}^5$ cumecs is to be studied by a 1 : 100 scale model in a laboratory. The discharge required in the model is:

• A. 0.5 $m^3/s$
• B. 10 $m^3/s$
• C. 1 $m^3/s$
• D. 5 $m^3/s$

Answer 1

The correct option is C 1 $m^3/s$

$\frac{Q_m}{Q_p}=(L_r{)}^{5/2}\Rightarrow Q_m=\frac{{10}^5}{{100}^{5/2}}=1m^3/s$