
What is the pole of a spherical mirror?
Important Questions on Light



Correct relation between radius of curvature() and Focal length () of a spherical mirror is:




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?







What should he do to burn the paper?



What will be the angle of incidence when a ray of light passes through the centre of curvature of a concave mirror?


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.

