Question

in a periscope the plane mirrors are inclined at 45°.give reason.

Answer 1

In a periscope , mirrors are inclined at an angle of 45° so that light rays always travel in parellal direction with the tube of periscope.When the viewer looks into the periscope,he/she can easily analyse the picture outside.

Answer 2

Answer:

it is important that your mirrors are placed at a 45 degree angle

Explanation:

because light always reflects from mirror at the same angle that is hits it .