“You are standing on the shore of Lake Manchar which is the largest freshwater lake in Pakistan and one of Asia's largest. It is located west of the Indus River, in Dadu District. You spot a tasty fish swimming some distance below the lake surface.

(a) If you want to spear the fish, should you aim the spear (I) above (II) Below or (III) Directly at the apparent position of the fish?

(b) If instead you use a high-power LASER to simultaneously kill and cook the fish, should you aim the LASER (I) Above (II) Below, or (III) Directly at the apparent position of the fish?”