Geometric Optics

Bulb in a Can

Solutions

Q1: Treat the flame as a point source.  Determine the region of the tabletop that is lit by the reflection of the flame.  Draw and label the relevant light rays and lighted regions on a diagram of the situation.  Explain the reasoning used to draw the rays.

Q2: As the candle burns the flame get closer to the bottom of the coffee can.  How does this change the lighted areas of the table?  Explain using the diagram from question #1

Q3: If the candle were moved from the center closer to the side of the can, how would the lighted regions on the table top change?


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