Question

describe an experiment to prove that light travels in straight line

Answer 1

Two experiments are used to demonstrate how light travels in straight lines. In the first example, the presenter arranges three pieces of card, with holes in, in an uneven line. The light stops and cannot travelthrough all three cards. When she arranges the holes in a straight line, the light can travel through.

Answer 2

Answer:

Take a candle flame through a straight piece of plastic pipe then take a the same flame through a bend plastic pipe .

Light travles in a striaght lines' so the flame is not visible throught a bend pipe.

Explanation:

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