2. Complete the ray diagram for an object in front of a lens to show how to find the location and size of the
image from the location and size of the object. F labels the focal points of the lens.
In this case draw all the rays needed to locate the object, then state whether the image is real or virtual and
upright or inverted,
Draw directly on the incomplete diagram provided.

Astudent 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.