Question

what will be the path taken by the light emitted by a candle

Answer 1

Always a straight line path

Since the light always travel in straight line path...

Here also this will happen...

:)

Answer 2

But since light travels in a straight line, we were unable to see the flame of the candle when the CD is displaced. This proves that light travels along a straight line. In the above picture, we can clearly see that light coming through the holes in the window travel along a straight line