Question

Explain why an object in water always appears to be at a depth shallower than it actually is? Why do people sometimes sustain neck and spinal injuries when diving into unfamiliar ponds or waters?

a) The refraction of light in water causes objects to appear shallower.

b) Objects in water are always at the perceived depth.

c) Neck and spinal injuries are not related to water depth perception.

d) Diving into unfamiliar waters increases the risk of injuries.

Answer 1

The refraction of light in water causes objects to appear shallower than they actually are. Diving into unfamiliar waters increases the risk of neck and spinal injuries.

Step-by-step explanation:

The correct answer is a) The refraction of light in water causes objects to appear shallower. When light travels from one medium (air) to another medium (water), it changes speed and direction, causing it to bend or refract. This refraction of light at the interface between air and water causes objects in water to appear closer to the surface than they actually are.

As for the question about neck and spinal injuries when diving into unfamiliar waters, the correct answer is d) Diving into unfamiliar waters increases the risk of injuries. Diving into unfamiliar waters can be dangerous because the depth and obstacles under the surface may not be familiar to the diver. This can lead to misjudging the depth of the water and diving into shallow areas, resulting in neck and spinal injuries.