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Lenses are used in (a) Spectacles (b) telescopes and microscopes (c) photographic camera, etc.
Two.
Convex lens and concave lens.
What are the practical uses of lens?
Lenses are used in (a) Spectacles (b) telescopes and microscopes (c) photographic camera, etc.
Lenses are used in (a) Spectacles (b) telescopes and microscopes (c) photographic camera, etc.
See lessHow many refracting surfaces a lens has?
Two.
Two.
See lessName two types of lenses commonly used.
Convex lens and concave lens.
Convex lens and concave lens.
See less