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:- principal axis
Write the formula for a lens connecting image distance (v), object distance (u) and the focal length (f). How does the lens formula differ from the mirror formula?
How is a spherical mirror used to converge a beam of light at a point? Name the type of mirror used.
Name the spherical mirror which (i) diverges (ii) converges the beam of light incident on it. Justify your answer by drawing a ray diagram in each case.
Complete the following diagrams shown in Fig. by drawing the reflected ray for each of the incident ray A and B.
Draw a ray diagram to show the formation of image of an object kept in front of a convex mirror. State three characteristics of the image.
The image formed by a convex mirror is of size one third the size of object. How are u and v related?
Is real image always inverted?
Complete the following diagrams shown in the below figure by drawing the reflected ray for each incident ray.
