Standard Science Primary 4 Energy

Why are mirrors made of polished metal or glass with a silver backing?

A They allow light to pass through easily.
B They are strong materials.
C They absorb light to create an image.
D They have smooth surfaces that reflect light well.
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Worked Solution

Step 1: Mirrors work on the principle of reflection. Step 2: Smooth, shiny surfaces reflect light in a predictable, regular way. Step 3: This creates a clear image.

Correct answer: They have smooth surfaces that reflect light well.

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