Question

write the uses of concave and convex les.

Answer 1

convex lenses can be used to get magnified or larger images of objects.as it shows small images,it can be used as spectacles for short sightedness (myophia).it can also be used in flashlights, peepholes, binoculars, telescopes, and in photography.it is also kept in curves of road to get a better view of the coming vehicles which cannot be seen by the other driver.it can reduce accidents.

concave lens can be used as reflecting surfaces in headlights of cars, in telescopes, in satellite dishes, as shaving mirrors, in torch and etc

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Answer 2

Uses of Convex Lenses

1.Uses in spectacles to correct the defect of vision called hypermetropia or long sightedness

2.Used for making a simple camera

3.Used as magnifying glasses

4.Used in microscopes, telescopes, film projectors, etc.

Uses of Concave Lenses

1.Concave lenses are used for correcting myopia or short-sightedness.

2.Concave lenses are used on flashlights to magnify the light produced by the bulb.

3.Used in peepholes of house doors for security to provide a view of people or objects outside the doors.

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