1. Did the light able to pass in all the materials? Why?
2. Why only some light shone through the paper?
3. What happened to the light in the mirror?
4. Why does the light shone through the glass but not through the book?
5.Does the light direction always the same? Why?
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Answers & Comments
Answer:
Opaque materials do not allow transmission of light waves. In other words, we can't see through an opaque object. We can only see the surface because the light waves are re-emitted from the surface back to our eyes. Opacity occurs because of the reflection of light waves off the surface of an object.