Question

4.
The distance, between the object and its image, in a plane mirror is 6 m. If
the object moves 1 m towards the mirror, then the (new) distance between the
object and its image will be-​

Answer 1

Explanation:

Given,

distance between image and object is 6m.

the object moves 1m towards the mirror

if object moves 1m then the image also moves 1m forward,

new distance=6-2

=4m

Answer 2

Answer:

The distance between the object and its image is 4 m.

Explanation:

Heya Mate..

We all know that, the distance of the object and the distance of the image from the mirror is the same. And, we also know that, when the object moves some distance in a direction, then its object also moves the same amount of distance in the same direction.

:. When the object moves a distance of 1 m towards the mirror, then its image also moves

1 m towards the mirror(Reason Above).

So, we have already been given that,

Total Distance between the image and the object=6 m.

We have,

Distance of Object from the Mirror=Distance of Image from the Mirror=6/2=3 m.

Now, Distance moved by the object towards the mirror=1 m

New distance of the object from the mirror

=3-1 m = 2 m

Again, Distance moved by the Image from the mirror=1 m.

New distance of the Image from the mirror

=3-1 m = 2 m

:.And Finally, Distance between the Object and the Image

=New Distance of the object from the mirror+New Distance of the Image from the mirror

=2+2 m = 4 m

Note: Its very important to note that when the object and the image moves towards the mirror, then the distance between them and the mirror decreases or the distance moved gets subtracted from the distance between them.

And, when the object and the image moves away from the mirror, then distance between them increases or the distance moved gets added to the distance between them.

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