The radius of curvature is equal to twice the focal length of concave mirror.
Important Questions on Light- Reflection and Refraction
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.
Observe the following diagram and answer the question given below
Explain why a ray of light passing through the centre of curvature of a concave mirror gets reflected back along the same path.
What is meant by the pole of a spherical mirror?
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 type of mirror is used in the viewfinder of a motor car?
What will be the angle of incidence when a ray of light passes through the centre of curvature of a concave mirror?
What type of mirror is used by dentists? Why does a ray of light not deviate as a result of refraction through a glass slab?
Where in front of a concave mirror image of an extended object placed at infinity will be formed by the mirror? Mention one feature of the image.
