Standard Science Primary 4 Energy

Siti wants to make a lampshade that allows some light to pass through so the room is not too dark, but also prevents the bulb from being seen clearly. Which material is most suitable?

A Clear glass
B Sheet of iron
C Frosted glass
D Black cardboard
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Worked Solution

Step 1: The requirement is to allow "some" light through and "blur" the image. Step [2-9]: Translucent materials, like frosted glass, scatter light as it passes through. Step [2-9]: Opaque materials (iron/cardboard) block light entirely.

Correct answer: Frosted glass

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