You are given a small piece of a plane mirror. Can this piece form an image of an object much larger than the mirror, like a large tree? Think and predict. Then carry out the activity.
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Key Points
- Take a small piece of plane mirror.
- Hold it to reflect a large object like a tree.
- Move it until you see the full tree in it.
- The whole image fits even in the small mirror.
- So mirror size does not limit the image size.
- Light from the Sun takes about 8 minutes and 20 seconds to reach Earth.
- So we always see the Sun as it was minutes ago.
- If the Sun suddenly stopped shining, we would not know at once.
- We would find out only after 8 minutes and 20 seconds.