SATHEE: Straight Line Question 253

Straight Line Question 253

Question: A ray of light passing through a point (1, 2) is reflected on the x-axis at point Q and passes through the point (5, 8). Then the abscissa of the point Q is

Options:

A) -3

B) 9/5

C) 13/5

D) None of these

Show Answer

Answer:

Correct Answer: B

Solution:

[b] Let point Q be (x, 0). Since, $ m _{PQ}=-m _{RQ} $ therefore $ \frac{0-2}{x-1}=-( \frac{8-0}{5-x} )\Rightarrow x=\frac{9}{5} $

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Straight Line Question 253

Question: A ray of light passing through a point (1, 2) is reflected on the x-axis at point Q and passes through the point (5, 8). Then the abscissa of the point Q is

Options:

Answer:

Solution:

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