Answer in about four to five sentences,
i) Explain rectilinear propagation of light with an experiment
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Answer:
Rectilinear propagation is the phenomenon where the light travels in a straight line.
Explanation:
Light only travels in a straight line. If the density of the medium changes then it deviates its path which is called refraction.
EXPERIMENT:-
Use a candle from a distance and place three cardboards with pinholes on same length from where you can see the flame. This way its an experiment fro the propagation of light
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