Question 4: Fishing with Bow vs. Laser
Explanation
- Apparent Position: Due to refraction, light traveling from the fish (denser medium) to air (rarer medium) bends away from the normal. This causes the fish to appear shallower (higher) than it actually is.
- Using a Laser: A laser beam is light. According to the Principle of Reversibility, the laser beam traveling from air to water will follow the exact same path as the light coming from the fish. Therefore, if you aim the laser directly at the apparent image, the light will refract at the surface and hit the real fish.
- Using an Arrow: An arrow travels in a mechanical trajectory (roughly a straight line for short distances) and does not refract like light. If you aim at the apparent image, the arrow will go to that spot, passing above the real fish. To hit the real fish, you must aim below the apparent image.
Correct Option: (b) Aim the arrow below the fish and the laser gun at the fish.