Question

Fill in the blanks:-
1) The............ lens is thicker near the centre compared to the edges.
2) A point on the principal axis of a lens such that A ray of light passing through it, emerges undeviated is............. of the lens.
3) The unit of power of lens is...........
4) .............. power of the eye decrases with the age.
5) Convex lenses are used in spectacles for correcting..............​

Answer 1

Answer:

1.convex

3.diopter

4.lens

5.myopia

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Answer 2

Answer:

1.)Convex

2.)optical centre

3.)dioptre

4.)presbyopia

5.)Hypermetropia

Explanation:

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