Physics
State two applications each of a convex lens and a concave lens.
Refraction Lens
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Answer
Applications of a convex lens are —
(i) The objective lens of a telescope, camera, slide projector, etc., is a convex lens which forms the real and inverted image of the object.
(ii) Our eye lens is also a convex lens. The eye lens forms the inverted image of the object on retina.
Application of concave lens are —
(i) A concave lens is used as the eye lens in a Galilean telescope to obtain the final erect image of the object.
(ii) A person suffering from short sightedness or myopia (i.e., unable to see the far objects distinctly) wears spectacles having the concave lens.
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