Question

3. Mirror that curves inside.
4. A lens that is thicker at the centre than at the edges.
5. The colours of a rainbow.​

Answer 1

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1) A Concave Mirror

2). A Convex Lens

3). They form VIBGYOR i.e. ( Violet, Indigo, Blue, Green, Yellow, Orange and Red )

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Answer 2

3. Concave mirror

4. Convex lens

5. The colours of the rainbow are Violet, Indigo, Blue, Green, Yellow, Orange & Red VIBGYOR.

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