Question

A bird is flying down vertically towards the surface of water with constant speed. A fish in the water vertically below the bird sees the bird

• A. Further away than actual distance
• B. Closer than actual distance
• C. At actual distance
• D. In inclined position

Answer 1

The Correct Option is A

To solve the problem, we need to understand how a fish underwater perceives a bird flying vertically above the surface of water.

1. Concept of Refraction:
When light travels from air (rarer medium) to water (denser medium), it bends towards the normal. The reverse happens when looking from water to air—the apparent position of the object (here, the bird) appears to be further away than it actually is.

2. Applying the Concept:
The fish in the water observes the bird through the refracted rays. Due to refraction at the water-air interface, the bird appears to be at a higher position than it actually is, making it seem farther away.

Final Answer:
The fish sees the bird further away than actual distance (Option A).