When immersed in a beaker of water, a straight glass rod seems to undergo bending, as depicted in the diagram.

Question

-Glass rod
Air
-Water

What provides the most accurate explanation for this phenomenon?
(1 point)

In water, light moves at a higher speed compared to its velocity in air.
As light crosses the boundary between air and water, it undergoes refraction.
The temperature of the water in the beaker is higher than that of the surrounding air.
At the interface between air and water, light undergoes reflection.

Answer 1

The most accurate explanation for the bending of the glass rod when immersed in water is:

As light crosses the boundary between air and water, it undergoes refraction.

This phenomenon occurs because light travels at different speeds in different media. When light passes from air (a less dense medium) into water (a denser medium), it slows down and changes direction, making the rod appear bent at the interface.