PHYSICS [1 Mark Question Answer]

between infinity and pole of the mirror- will be virtual, magnified, and behind the mirror. The image formed by a convex mirror if the object is placed: at infinity- will be virtual, diminished, and behind the mirror.

When an object is placed between the focus and the pole of a concave mirror, the image is virtual, erect and enlarged.

When an object is placed between the centre of curvature and the principal focus of a concave mirror, its image is formed beyond the centre of curvature. The image formed is real, inverted and magnified.

The image formed by the concave mirror will be enlarged and erect if it is placed very close to the face.

The image formed by the convex mirror will be erect and diminished in size.

The image formed by the plane mirror is laterally inverted and of the same size as the object.

A virtual image is an upright image that is achieved where the rays seem to diverge.
A virtual image is produced with the help of a diverging lens or a convex mirror.

Real images are obtained using a converging lens or a concave mirror.
he size of the real image depends upon the placement of the object.

Two uses of Convex mirror.
When convex mirrors are used, the magnification of objects becomes simple.
It is used in sunglasses.

Two uses of concave mirror:
It is used as a shaving mirror.
It is used as reflector in torch, head light of automobiles etc.

The center of curvature of a curve is found at a point that is at a distance from the curve equal to the radius of curvature lying on the normal vector.

It is the geometrical center of the reflecting surface. It is represented by the letter P.

Focal length is defined as the distance between the optical center and the focus of the lens.

The line passing through the optical center and centers of curvature of the faces of a lens or a curved mirror.

Convex mirrors are used as street light reflectors.

Any ray of light which initially passes through the principal focus of a spherical mirror, after reflection passes through parallel.

A concave mirror can be used as a shaving glass as it forms virtual and enlarged image.

When the object is at infinity in front of a convex mirror, it forms a virtual, erect and highly diminished image.

The hollow surface of a concave mirror is silvered, such that its inner surface acts as reflecting surface.