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Grade: 12

A pole of height 4cm is kept in front of a vertical plane mirror of length 2m. The lower end of mirror is at height 6m from ground.the horizontal distance betwen miror and pole is 2m. Upto what maximun and minimum height,a man can see the image of the pole at a distance of 4m standing on the same horizontal line which pasing thrgh the pole and horizontal pt. below the mirror ? Pls upload image in answering and explain clearly.(ans:-16m and 10m).

9 years ago

Answers : (1)

Payal Rajput
13 Points
The height of bottom of mirror = 6m,
Height of top of pole = 4m,
Distance between pole and mirror = 2m

Viewing distance from mirror = 4 + 2 = 6m and viewing distance from pole = 4 m

​Maximum height up to a man at a distance of 4 m can see the top of the pole = 6+2+8 = 16 m

minimum height up to person can see the pole = 6 + 4 = 10 m
2 years ago
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