A man, whose height is 1.75 m is standing at a distance 6 m from a vertical pillar of height h = 7 m . At what distance from the man should we put a small flat mirror on the ground horizontally to see

Question

A man, whose height is 1.75 m is standing at a distance 6 m from a vertical pillar of height $h = 7 m$ . At what distance from the man should we put a small flat mirror on the ground horizontally to see in it the image of the top of the pillar?

Options:

Answer:

B

Solution:

$\frac{6 - x}{x} = \frac{17.5}{7} \Rightarrow x = 4.8 m$

So distance from men will be 1.2 m

TestHub · Accepted Answer

x 6 − x ​ = 7 17.5 ​ ⇒ x = 4.8 m So distance from men will be 1.2 m

Physics - Geometrical Optics Question with Solution | TestHub

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