When does light travel in a straight line?

3 Ways to Prove That Light Travels in a Straight Path - wikiHow

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TWO-SPLIT-EXCEPT - Manthan

Can light bend during its travel? Can it be made to travel back to

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Light Travels in a Straight Line Experiment (teacher made)

Light travels in straight lines outwards from its source — Science

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Properties of light - Properties of light Light travels in a

How does light travel in a straight line?

Rajesh conducts the following experiment. He cuts 3 cardboard

How do we know that light travels in straight lines through space