Advanced Science Primary 4 Energy

Why can we see the book on the table even though it does not give off its own light?

A Light from a source is reflected by the book into our eyes.
B The book is transparent.
C The book absorbs all the light.
D Our eyes give off light to see the book.
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Worked Solution

Step 1: To see an object, light must enter our eyes. Step 2: Non-luminous objects like books reflect light from sources (like a lamp). Step 3: This reflected light enters our eyes.

Correct answer: Light from a source is reflected by the book into our eyes.

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