Standard Science Primary 4 Energy

Which property of light is used in the design of a periscope to see over walls?

A Both A and B
B Light travels in straight lines.
C Light can be refracted.
D Light can be reflected.
Show Worked Solution

Worked Solution

Step 1: Mirrors in a periscope reflect light. Step 2: Light travels straight from one mirror to the next. Step 3: Both properties are essential for the device to work.

Correct answer: Both A and B

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