Concave lenses can be found in a variety of real-world applications.
Telescopes and binoculars
Nearsightedness can be corrected with eyeglasses.
Cameras.
Flashlights.
Question : A person suffering from long-sightedness wears spectacles having:
Option 1: concave-convex lens
Option 2: lenses with negative
Option 3: concave lenses
Option 4: convex lenses
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