Light travels from inside a building to outside through a pane of glass. Which of the following is true regarding the phase change upon reflection in the case?
a. A 180o phase change occurs at the inside surface but not at the outside surface.
b. A 180o phase change occurs at the outside surface but not at the inside surface.
c. A 180o phase change occurs at both the inside surface and the outside surface.
d. No phase change occurs at either the inside surface or the outside surface of the glass.
a
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