Question

which form of past tense is used to show "express completion of an action before another action of the past"?​

Answer 1

Answer:

1. past tense before

Explanation:

this tense is before used

Answer 2

Explanation:

past continues is correct

So, light incident on any smooth shiny surface like a mirror bounces back into the same medium. This bouncing of light by any smooth surface is called reflection of light. Mirrors change the direction of light incident on them. The image in a plane mirror is the same size and colour as that of the object.