Standard Science Primary 4 Energy

Why can light not be seen through a bent tube but can be seen through a straight tube?

A Light travels in waves that break in bends.
B Bending the tube makes the material opaque.
C Light travels in straight lines.
D Light loses energy in corners.
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Worked Solution

Step 1: Light travels in straight lines. Step [2-9]: If the path is obstructed by a bend in an opaque tube, the light cannot reach the eye. Step [2-9]: A straight tube allows the straight path to be clear.

Correct answer: Light travels in straight lines.

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