Q.

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

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a

y=x+3

b

3y=x−3

c

y=3x−3

d

3y=x−1

answer is B.

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Detailed Solution

Slope of reflected ray is 13 and it passing through (3,0) is y−0x−3=13 3y=x−3
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