Spherical Mirrors

When a spherical mirror is held up almost facing the sun, a sharp image of the sun is formed on a small piece of paper, which causes it to catch fire. The spherical mirror is _____ in nature and the sheet of paper is placed at the _____ of the mirror. Fill in the blanks by choosing an appropriate option from the ones given below.

What is focus in a spherical mirror?

What happens when a ray of light is incident at the pole?

Which ray striking a spherical mirror will be reflected along itself?

What happens if aperture is increased in spherical mirror?

What is the aperture of a spherical mirror?

Which type of mirror has a virtual focus?

Explain the meaning of the term focus of a convex mirror, with the help of a suitable ray diagram. 

An object is placed at a distance of $10 \mathrm{cm}$. From a convex mirror of focal length $15 \mathrm{cm}$. The position and nature of the image are :

_____ is located behind a convex mirror :

A spherical mirror and a thin spherical lens each of focal length $-10 \mathrm{cm}$ are given. The mirror and lens are likely to be:

A concave mirror of focal length 15cm forms an image. The position of the object when the image is virtual and linear magnification is 2 is.

An object is placed $5 \mathrm{cm}$ in front of convex mirror whose radius of curvature is $3 \mathrm{cm}$. Find the position and nature of image.

The image formed by a concave mirror is observed to be virtual, erect and larger than the object. Where should be the position of the object?

At focus $\mathrm{F}$ and between $\mathrm{F}$ and $2\mathrm{F}$, a concave mirror always forms a

Explain the relation between the radius of curvature and the focal length of concave mirror and convex mirror.

The radius of curvature is equal to twice the focal length of concave mirror.

The radius of curvature is equal to twice the focal length of convex mirror.

The radius of curvature is equal to twice the focal length of convex mirror. Explain.

The radius of curvature is equal to twice the focal length of concave mirror. Explain.