explain with the help of an activity that light travels in a straight line
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a example is touch that light travels in straight line
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Gather your materials. This experiment will allow you to create a light pinhole, which will show you how light travels in a straight line by filtering it through a hole. To create a light pinhole, you will need the following supplies:[2]
Three index cards.
A piece of modeling clay or sticky tack. You can also use double sided tape.
A flashlight or a laser pointer.
A hole puncher.
A ruler.
Three index cards.
A piece of modeling clay or sticky tack. You can also use double sided tape.
A flashlight or a laser pointer.
A hole puncher.
A ruler.
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