Question

A student is given an assignment to demonstrate diffraction. He takes a photograph of a straw in a glass of water. The straw appears bent at the water level. Which best describes this example?
A) This is a good example of diffraction.
B) This is an example of dispersion and not diffraction.
C) This is an example of refraction and not diffraction.
D) This is an example of reflection and not diffraction.

Answer 1

The answer is "c". because the straw the straw moves from air to water and appears refracted at the water level

Answer 2

The answer is C, This is an example of refraction and not diffraction.