Question

Tell me Uses of Lens !​

Answer 1

Here's ur answer buddy!

Convex lenses are used to correct farsighted vision problems. Similarly, concave lenses are used to correct nearsightedness. Compound microscopes and telescopes use both convex and concave lenses. Using combinations of convex lenses may create blurry images. A concave eyepiece is used to correct this problem. Even in cameras, a combination of both concave and convex lenses are sometimes used. The use of concave lenses is very important in lasers. The actual light ray is highly specific which may damage equipment where it is used (like CD’s and scanners). The diverging lens rectifies this issue. Concave lenses are also used in flashlights where the light beam diverges for larger area coverage.

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Answer 2

A lens is a transparent reflecting medium bounded by either the two spherical surfaces or one surface spherical and another surface plane.

Uses of lens :

1) lens are used in large number of optical instruments.

2) A convex is used as objective lens of telescop-e , camera slide projector.

3) In the collimator of spectroscope , convex lens is used.

4) Combination of convex lens is used to overcome chromatic aberrartion defect.

5) Concave lens is used to distinct objects.