A mirror is placed on the ground facing upwards. A man sees the top of a tower in the mirror which is at a distance of 105 m from the mirror. The man is 0.5 m away from the mirror, and his height is 1.5 m. Find the height of the tower (in metres).
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 315.
ED is the height of the man and AB is the height of the tower
△ABC and △CDE are similar triangles
AB/DE = BC/DC
⇒ h/1.5 = 105/0.5
⇒ h = 315