Answer:
I dont really understand your question. but maybe this might help.
https://quizlet.com/283377931/radiation-flash-cards/
Explanation:
25 sugar because the mass should be equal on both sides
A: because the light is lower than the hole, it will come in at in inclined angle. if the hole was say at the same level as the hole, it would shine straight to the other side of the box
