Question

what is the difference between the convex mirror and concave​

Answer 1

Answer:

The fundamental difference between them is that the reflective surface of a concave mirror is inside the sphere and that of a convex mirror is outside.

Convex mirror:

The outer surface of the spherical mirror is reflecting.

It forms virtual and erect images.\

The image formed is always smaller than the actual size.

Its focus point lies at behind its reflecting surface

Concave mirror:

The inner surface of the spherical mirror is reflecting.

It forms a real-inverted image and also virtual-erect pictures.

The image formed can be larger or smaller than the actual size.

Its focus point lies at the front of its reflecting surface

The front part of a spoon is concave and the back part of a spoon is convex.

Answer 2

Differentiating Property Concave Mirror Convex Mirror

1 Meaning and Other Names  

Concave means rounded or hollowed like the interior of a circle or sphere

Also called a converging mirror.

Convex means rounded or curved like the exterior of a circle or sphere.

Also called a fish eye or diverging mirror.

2 Mirror Shape Mirror Shape Mirror Shape

3 Structure  

The mirror coating of the concave mirror is on the outside of the spherical surface.

In concave mirrors, the centre of curvature and the reflecting surface fall on the same side of the mirror.

The mirror coating of the convex mirror is on the inside of the spherical surface.

In convex mirrors, the centre of curvature and the reflecting surface fall on the opposite side of the mirror.

4 Position of the Focus  

Focus lies in front of the mirror i.e. focal length, is positive.

The focus lies behind the mirror i.e. focal length is negative.

5 Image Properties  

The image formed by a concave mirror is real, inverted and enlarged (except when the object is between P and F where the image is virtual, erect and enlarged).

The image formed by a convex mirror is virtual, erect and diminished.

6 Image Projection  

An image can be projected on a screen as they are real.

Image cannot be projected on a screen as they are virtual.

7 Usage  

They are used in reflecting telescopes, shaving mirrors, torchlights, etc. as they give a magnified image of the objects.

Convex mirrors are used as side view or rearview mirrors in vehicles as they cover a wider area of view.

 

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