Questions
A light ray emerging from the point source placed at P(2,3) is reflected at a point Q on the y-axis. It then passes through the point R(5, l0). The coordinates of Q are
detailed solution
Correct option is C
The point of coincidence on the y -axis is Q(0,λ) . The image of P(2,3) on the y -axis is P1(−2,3)Therefore, Slope of P1Q= Slope of P1R or λ−30−(−2)=10−35−(−2) or λ−3=2 or λ=5Therefore, the point Q is (0, 5).Talk to our academic expert!
Similar Questions
A light ray emerging form the point source placed at P(2,3) is reflected at a point Q on the y-axis. It then passes through the point R(5,10). The coordinates of Q are
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