- #1
annalian
- 56
- 1
Homework Statement
Two plain mirrors are put parallelly and 20 cm from each other. A source of light is put between the mirrors, 5 cm away from one. Find the distance from the mirrors of 4 first reflections.
Homework Equations
a1=a2 The distance of the object from the mirror and the reflection from the mirror is equal.
The Attempt at a Solution
http://s32.postimg.org/507dau85h/image.png
is it right?