Water is flowing with a flow rate \( Q \) in a horizontal circular pipe. Due to the low pressure created at the venturi section (Section-1 in the figure), water from a reservoir is drawn upward using a connecting pipe as shown in the figure. Take acceleration due to gravity \( g = 10 \, \text{m/s}^2 \). The flow rate \( Q = 0.1 \, \text{m}^3/\text{s} \), \( D_1 = 8 \, \text{cm} \), and \( D_2 = 20 \, \text{cm} \). The maximum height \( h \) (in meters, up to one decimal place) of the venturi from the reservoir just sufficient to raise the liquid up to Section-1 is \(\underline{\hspace{1cm}}\).
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