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JEE Main20206 Sep 2020Morning ShiftMathematicsStraight LinesActual

A ray of light coming from the point ( 2 , 2 3 ) is incident at an angle 30 ° on the line x = 1 at the point A . The ray gets reflected on the line x = 1 and meets x -axis at the point B . Then, the line A B passes through the point

Options

  1. A3 , - 1 3
  2. B( 4 , - 3 2 )
  3. C( 3 , - 3 )
  4. D4 , - 3

Correct answer

C. ( 3 , - 3 )

Step-by-step solution

Equation of P ' B → y - 2 3 = tan 120 ° · ( x - 0 ) ⇒    3 x + y = 2 3 Now satisfy options

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