question_answer

Two plane mirrors are placed parallel to each other. The distance between the mirrors is 10 cm. An object is placed between the mirrors at a distance of 4 cm from one of them, say\[{{M}_{1}}\]. What is the distance between the first image at \[{{M}_{1}}\]and the second image formed at\[{{M}_{2}}\]?

Answer:

The first image at\[{{M}_{1}}\]is formed at a distance of 4 cm behind it. The first image at\[{{M}_{2}}\]is 6 cm behind it. The second image at\[{{M}_{2}}\]is at a distance of \[4+10=14\text{ }cm\] behind.\[{{M}_{2}}\]. Therefore, the distance between the first image at\[{{M}_{1}}\]and second image at\[{{M}_{2}}\]is\[4+14+10=28\text{ }cm.\]