Question

Let us assume that you are on the moon. If you try to focus sun light on a paper using magnifying glass, does the paper catch fire? or not? Why?

Answer 1

No, moon reflects entire sunlight that falls on the surface because it acts as perfect reflector. Whereas earth is also acts as reflector but green house gases

present in atmosphere absorbing the sunlight and resending on earth. So paper can be burnt on earth by using magnifying glass but it is not possible on moon.