A) 2
B) 4
C) 6
D) 8
Correct Answer: D
Solution :
Equation of LH \[(y-2a)\,=\frac{-1}{2}\,(x-a)\] Put \[y=0\] \[\Rightarrow \,x=5a\] \[\therefore \,\,{{y}^{2}}=4ax\,(4a)(5a)\,=20{{a}^{2}}\] \[y=2\sqrt{5}a\] \[\Rightarrow \,\,2y=4\sqrt{5}\,a\] [Slope of OL = 2; Slope of LH \[=\frac{-1}{2}\]]You need to login to perform this action.
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