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Grade 11IIT JEE Entrance Exam

A Ray of light starting from (3,10) hits The Mirror 2 X +3y -6=0 and passes through the point (7,2) after reflection. The equation of reflected Ray is

Profile image of Sudhanva G V
7 Years agoGrade 11
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1 Answer

Profile image of Aditya Gupta
7 Years ago
rather than taking the long route and finding the point of intersection of the line with the mirror, you can instead use a clever trick. simply find the reflection of the point  (3,10) in The Mirror 2 X +3y -6=0. lets call the reflection as point C. then write the eqn of line joining point C and (7,2). and there you have it, equation of the reflected Ray!

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