Point out difference between a convex lens and a concave lens.

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Solution

Convex Lens Concave Lens

1. It is thicker at the centre and thin at the ends. It is thinner at the centre and thick at the ends.

2. It converges rays of light. It diverges rays of light.

3. It has a real focus. It has a virtual focus.

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What is a lens? Write the differences between concave and convex lenses. [5 MARKS]

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Convex Lens	Concave Lens
1. It is thicker at the centre and thin at the ends.	It is thinner at the centre and thick at the ends.
2. It converges rays of light.	It diverges rays of light.
3. It has a real focus.	It has a virtual focus.