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Mathematics - Straight Lines Question with Solution | TestHub

MathematicsStraight LinesGeneral (Standard forms)Medium2 minPYQ_2013

MathematicsMediumsingle choice

A ray of light along $x + \sqrt{3} y = \sqrt{3}$ gets reflected upon reaching $X -$ axis, the equation of the reflected ray is

Question diagram: A ray of light along x + 3 y = 3 gets reflected upon reachin

Options:

Answer:

Solution:

Let incident ray intersecting $Y -$ axis at $B$ and $X -$ axis at $A$ .

$∆ O A B$ is congruent to $∆ O A B^{'}$

Hence $O B^{'} = O B$

Equation of $B^{'} A : \frac{x}{\sqrt{3}} + \frac{y}{- 1} = 1$

or $x - \sqrt{3} y = \sqrt{3}$ .

Stream:JEESubject:MathematicsTopic:Straight LinesSubtopic:General (Standard forms)

⏱ 2mℹ️ Source: PYQ_2013

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