Question

An object of height 120 cm is standing 50 cm in front of a plane mirror the distance between the object and image will be??

A)240 cm
B)360 cm
C)120 cm
D)50 cm

If you give proper explanation, I will mark as brainiest

Answer 1

Answer:

240 is correct answer please follow me

Answer 2

Answer:

A) 240 cm

Explanation:

Given here is:

d = 120 cm

Now, the distance of the "object" to the "mirror" is 120 cm [according to the question]

Also, since its a plane mirror, the object doesn't come closer or get further from the mirror, hence distance of the "image" to the "mirror"  is also 120cm.

Now let, $D_{OM}$ be the distance of object from mirror and similarly, $D_{IM}$ be the distance of image to mirror

Also, let $D_{OI}$ be the distance between object and image, which we need

Now, $D_{OI} = D_{OM} + D_{IM}$

$D_{OI} = 120 + 120\\\\D_{OI} = 240 cm$