Question

9. Mention if the given statement is correct or incorrect. If incorrect, rewrite the statement again

in the correct form.

When a light ray incident on the surface of an object is sent back into the same

medium, it results in refraction.

OR

What do you call the following ?

The line drawn perpendicular to the surface of the mirror at the point of incidence.

10. Astronomical distances are measured in Light Year. Justify.​

Answer 1

Answer:

i did not know

Explanation:

i am sorry i dont know