6A10.60 - Mirrors - Candle Under Water and Pepper's Ghost

Code Number:
Demo Title:
Mirrors - Candle Under Water and Pepper's Ghost
Reflections and Image-Object Distance
Area of Study:
Plexiglas or Glass Plate, Beaker Full of Water, Small Candle, Grill Lighter, and Black Screen or Box.

Set the Plexiglas plate vertically on the table so that you can see through it.  About 20 cm behind the glass plate place the beaker of water.  At approximately the same distance in front of the glass plate is where you place the candle or light bulb.  Viewing from a slight angle in relation to the glass plate should give you an image of the candle inside of the beaker.  Dimming the room lights may help brighten the image of the candle.

If you are setting this up as a hallway demonstration you will want to hide the candle from the viewer.  You would place the candle behind the black screen or in a black box to achieve this.

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