Problem 5.2 A piece of cardboard is placed between a very small light bulb and a screen. A block of glass is placed in front of the screen as shown in the side view diagram at right. bulb Ifthe glass were removed, would the size of the shadow on the screen increase, decrease, or stay the same? Explain your reasoning, and support your answer with a clear, qualitatively correct ray diagram. cardboard glass Y screen 3

Question

A. Stay the same. Glass is tightly against the cardboard.                                                                B. Increase. Light bends away from normal line entering glass.                                                        C. Increase . Light bends toward normal line entering glass.                                                      D. Decrease. Light bends away from normal line entering glass.                                                  E. Decrease. Light bends toward normal line entering   .                      

 

Problem 5.2
A piece of cardboard is placed between a very
small light bulb and a screen. A block of glass is
placed in front of the screen as shown in the
side view diagram at right.
bulb
Ifthe glass were removed, would the size of
the shadow on the screen increase, decrease,
or stay the same? Explain your reasoning, and
support your answer with a clear, qualitatively
correct ray diagram.
cardboard
glass
Y
screen
3

Image Transcription

Problem 5.2 A piece of cardboard is placed between a very small light bulb and a screen. A block of glass is placed in front of the screen as shown in the side view diagram at right. bulb Ifthe glass were removed, would the size of the shadow on the screen increase, decrease, or stay the same? Explain your reasoning, and support your answer with a clear, qualitatively correct ray diagram. cardboard glass Y screen 3

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Ray Optics

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