Assertion(A): The centre of curvature is not a part of the mirror. It lies outside its reflecting surface.

Reason (R): The reflecting surface of a spherical mirror forms a part of a sphere. This sphere has a centre.

The radius of curvature of a converging mirror is $30 \mathrm{cm}$. At what distance from the mirror should an object be placed so as to obtain a virtual image?

Which of the following statements is not true in reference to the diagram shown above?

A student holding a mirror in his hand, directed the reflecting surface of the mirror towards the Sun. He then directed the reflected light on to a sheet of paper held close to the mirror.

Which type of mirror does he have?

An object of height $4 \mathrm{cm}$ is kept at a distance of $30 \mathrm{cm}$ from the pole of a diverging mirror. If the focal length of the mirror is $10 \mathrm{cm}$, the height of the image formed is ____.

In the following diagram ‘$M$’ is a mirror and ‘$P$’ is an object and ‘$Q$’ is the magnified image of ‘$P$’ formed by the mirror. The mirror ‘$M$’ is a:

In which of the following is a concave mirror is used?

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.

What should he do to burn the paper?

For the diagram shown, according to the new Cartesian sign convention the magnification of the image formed will have the following specifications.

A student holding a mirror in his hand, directed the reflecting surface of the mirror towards the Sun. He then directed the reflected light on to a sheet of paper held close to the mirror.

Will he be able to determine the approximate value of focal length of this mirror from this activity ? Give reason and draw ray diagram to justify your answer in this case.