An object is placed 1 m in front of a plane mirror. An observer stands 3 m behind the object. For what distance must an observer focus his eyes in order to see the image of the object?

Question

An object is placed 1 m in front of a plane mirror. An observer stands 3 m behind the object. For what distance must an observer focus his eyes in order to see the image of the object? (A) 3 m (B) 4 m (C) 5 m (D) 8 m

Tardigrade Admin · Accepted Answer

The ray diagram for the situation is as shown below <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/4ae18e46d482bf3ba6a694521591f039-.png" /> Required distance = 5m.

Q. An object is placed $1 m$ in front of a plane mirror. An observer stands $3 m$ behind the object. For what distance must an observer focus his eyes in order to see the image of the object?

$3 m$

$4 m$

$5 m$

$8 m$

The ray diagram for the situation is as shown below

Required distance $= 5 m$ .

Q. An object is placed 1m in front of a plane mirror. An observer stands 3m behind the object. For what distance must an observer focus his eyes in order to see the image of the object?

3m

4m

5m

8m