A) 1%
B) 2%
C) 4%
D) 8%
Correct Answer: C
Solution :
[c] We know that, \[{{\text{y}}_{\text{m}}}=\text{H=}\frac{{{\left( \text{u sin}\theta \right)}^{2}}}{2\text{g}}\]\[=\frac{{{\text{u}}^{2}}\text{ si}{{\text{n}}^{2}}\theta }{2\text{g}}\] \[\therefore \frac{\Delta \text{H}}{\text{H}}=\frac{2\Delta \text{u}}{\text{u}}.\text{ Given }\frac{\Delta \text{u}}{\text{u}}=2%\] \[\therefore \frac{\Delta \text{H}}{\text{H}}=2\times 2=4%\]
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