when immersed in a beaker of water, a straight glass rod seems to undergo bending as depicted in the diagram.
which provides trhe most accurate explanation for this phenomenon.
A. the temperature of water in the beakers is higher than that of the surrounding air.
B. in water light moves at a higher speed compared to its velocity in air
C. at the interface between air and water light undergoes reflection
D.as light corsses the boundary between air and water it undergoes refraction