SATHEE: Straight Line and Pair of Straight Lines 2 Question 1

Straight Line and Pair of Straight Lines 2 Question 1

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

(a) $y = x + \sqrt{3}$

(b) $\sqrt{3} y = x - \sqrt{3}$

(d) $\sqrt{3} y = x - 1$

(2013 Main)

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Answer:

Correct Answer: 1. (b)

Solution:

Take any point $B (0, 1)$ on given line.

Equation of $A B$ is

$\begin{aligned} y - 0 = \frac{- 1 - 0}{0 - \sqrt{3}} (x - \sqrt{3}) \\ \Rightarrow - \sqrt{3} y = - x + \sqrt{3} \\ \Rightarrow x - \sqrt{3} y = \sqrt{3} \\ \Rightarrow \sqrt{3} y = x - \sqrt{3} \end{aligned}$

Straight Line and Pair of Straight Lines 2 Question 1

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

Answer:

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Straight Line and Pair of Straight Lines 2 Question 1

1. A ray of light along x+3y=3 gets reflected upon reaching X-axis, the equation of the reflected ray is

Answer:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

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