Question

When a beam of light is incident on a plane mirror, it is found that a real image is formed. The incident light beam must be :

• A. Converging
• B. Diverging
• C. Parallel
• D. Formation of real image by plane mirror is not possible

Answer 1

The correct option is A Converging

For the formation of a real image, the reflected rays must intersect.

In case of a plane mirror if the object is real then reflected rays diverge from the mirror after reflection. Hence, a virtual image is formed.
$\Rightarrow$ For reflected rays to intersect, they must converge after reflection. This is only achievable in case of a virtual object.

Here, $O\to$ virtual object
$I\to$ Real image