Table of Contents
- 1 Does a concave mirror has a virtual focus?
- 2 Does convex mirror have virtual focus?
- 3 Why concave mirrors have real focus and convex mirrors have virtual focus?
- 4 What is focus of convex mirror?
- 5 How do you convex mirror and concave mirror whose focus is situated behind the mirror?
- 6 What is convex and concave mirror?
Does a concave mirror has a virtual focus?
Also, for convex mirrors the rays seem to be originating from the unpolished side of the mirror, so they also have virtual focus. A concave mirror is said to have a real focus whereas a convex mirror is said to have a virtual foucs.
Does convex mirror have virtual focus?
In a convex mirror the reflected rays do not actually pass through the focus F. So a convex mirror has a virtual principal focus which is situated behind the mirror.
Which spherical mirror has a virtual principal focus?
A convex mirror, also known as a diverging mirror, as it is curved outward in the middle and when light strikes the reflective surface of the mirror, it diverges light rays. It has a virtual principal focus located behind the mirror.
Are convex mirrors virtual?
Plane mirrors and convex mirrors only produce virtual images. Only a concave mirror is capable of producing a real image and this only occurs if the object is located a distance greater than a focal length from the mirror’s surface.
Why concave mirrors have real focus and convex mirrors have virtual focus?
Focus is a point where light rays appears to meet. While in the case of convex mirror light rays are drawn back to meet at a point. Therefore Concave mirrors have a real focus as it is formed by real intersection of light rays.
What is focus of convex mirror?
Focus of a convex mirror it is a point on the principal axis from where the light rays that are incident , parallel to the principal axis , appear to arrive after reflection from the mirror. Focal length of a convex mirror it is the distance of the focus from pole of the convex mirror.
Why a concave mirror has a real focus while convex mirror has virtual focus?
Concave mirror has a real focus because the rays of light actually meet after reflection at the surface of the mirror. But, in a case of a convex mirror, the rays of light do not actually meat but virtually appear to meet, so the focus is called a virtual focus.
Why does a convex mirror always form a virtual image?
Convex mirrors always form virtual images because the focal point and the centre of curvature of the convex mirror are imaginary points and that cannot be reached. So the image is formed inside the mirror and cannot be projected on a screen.
How do you convex mirror and concave mirror whose focus is situated behind the mirror?
The focus of the convex mirror is situated behind the mirror, as the latter has a virtual focus.
What is convex and concave mirror?
Spherical mirrors contain curved surfaces which are painted on either one of the sides. When an inward surface of a spherical mirror is painted, then this type of mirror is considered a convex mirror. In the meantime, when the outward surface of the spherical mirror is painted, this mirror is called a concave mirror.
How do you tell if a mirror is concave or convex?
If the inner side of the spherical mirror is reflecting, it is called a concave mirror. If the outer side of the spherical mirror is reflecting, it is called a convex mirror. Concave mirrors can form inverted and real images and also virtual and erect images.
What is the difference between real focus and virtual focus which mirror has real focus?
The focus where the parallel light rays coming from a far object, parallel to each other and to principle axis converge actually is called real focus and when it diverge but appears to converge if rays are extended back is called virtual focus.