Question

Name two uses of each type of spherical lenses

Answer 1

    Concave mirrors are used as shaving mirrors to see a larger image of the face.

   Used for making a simple camera.

   Used as magnifying glasses.

   A convex lens is employed in microscopes and magnifying glasses to converge all incoming light rays to a particular point. ...

   The convex lens is used in cameras. ...

   A convex lens is used for the correction of hyperopia. ...

   The converging lens is used in the projector as well.

Answer 2

Answer:

concave lens and convex lens

Explanation:

Convex lens :

A lens having both the spherical surfaces bulging outward is a convex lens

Uses of convex lens :Convex lenses are used :

1)Magnifying glasses

2)Eyeglasses

3)Cameras

4)Microscopes

Concave lens :

A lens having both the spherical surfaces curved inwards is a concave lens

Uses of concave lens:Concave lens are used in :

1)Spectacles

2)Lasers

3)Flashlight

4)Peepholes

5)Cameras

difference between concave lens and convex lens

concave lens:

1) It is also called as diverging lens

2) This lens is thinner in the centre than at its edges

3) The principal focus is virtual

4) The focal length is negative

5) This lens is used to correct myopia

convex lens:

1) It is also called as converging lens

2) This lens is thicker at the centre than at its edges

3) The principal focus is real as well as virtual

4) The focal length is positive

5) This lens can be used to correct hypermetropia

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