Advertisements
Advertisements
प्रश्न
Which are the two convenient rays that are chosen to construct the image by a spherical mirror for a given object? Explain with the help of suitable ray diagrams.
Advertisements
उत्तर
Two convenient rays that are chosen to construct the image by a spherical mirror for a given object :
- A ray passing through the centre of curvature: A ray of light passing through the centre of curvature of a concave mirror or a ray directed in the direction of the centre of curvature of a convex mirror is reflected back along the same path after reflection.
- A ray parallel to the principal axis: A ray of light parallel the principal axis, after reflection pass through the principal focus in case of a concave mirror or appears to diverge from it in case of a convex mirror.
APPEARS IN
संबंधित प्रश्न
Explain the following term related to spherical lenses: focal length
Which type of mirror can form a real image?
The letter F is placed in front of a plane mirror:
What is the name of the phenomenon involved?
What is the relation between the focal length and radius of curvature of a spherical mirror (concave mirror of convex mirror)? Calculate the focal length of a spherical mirror whose radius of curvature is 25 cm.
Write the mirror formula. Give the meaning of each symbol which occurs in it.
Does the mirror mentioned in part (b) form real image for all locations of the object?
Define the term Focus of a concave mirror.
The diagram below shows the parallel rays incident on a convex mirror. C is the centre of the curvature of the mirror. By drawing the paths of the reflected rays, label the focus F and hence find the focal length of the mirror.
The spherical mirror used as a rear view mirror in the vehicle is
The minimum length of the mirror required to see the full image of the person is half ‘ of his height.
