AP EAMCET · Maths · Straight Lines
A light ray emerging from a point source at \(A(2,3)\) is reflected on the \(Y\)-axis at point ' \(B\) ' and passes through point \(C(5,10)\), then the coordinates of ' \(B\) ' are
- A \((5,0)\)
- B \((0,5)\)
- C \((0,2)\)
- D \((2,0)\)
Answer & Solution
Correct Answer
(B) \((0,5)\)
Step-by-step Solution
Detailed explanation
Let point of reflection is \((0, y)\) then, by law of reflection, Angle of incidence \(=\) Angle of reflection \(\Rightarrow \tan \theta=\tan (-\theta)\) \{As angles are measured in opposite directions.\}…
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