Advertisements
Advertisements
प्रश्न
State the two kinds of spherical mirror and distinguish them with the aid of proper diagrams.
Advertisements
उत्तर
The kinds of SPHERICAL MIRRORS are :
- CONCAVE MIRROR
- CONVEX MIRROR
CONCAVE MIRROR: Silvered surface is away from the centre of curvature and focal length is negative, i.e. reflecting surface is towards the centre of curvature.
CONVEX MIRROR: Silvered surface is towards the centre of curvature and focal length is positive i.e. reflecting surface is away from the centre of curvature. It always forms diminished (small) image which is VIRTUAL.
APPEARS IN
संबंधित प्रश्न
An image formed by a ______ mirror is always of the same size as that of the object.
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of a carbon paper for some time, a hole is burnt in the carbon paper.
What is the advantage of using a carbon paper rather than a white paper?
A coin placed at the bottom of a vessel appears to be raised when water is poured in the vessel.
Explain the following terms :
Pole, Centre of curvature, Radius of curvature, Principal axis. Show them on separate diagrams for each of the concave and convex mirrors.
Figure shows a concave mirror with its pole at P, focus F and centre of curvature C. Draw ray diagram to show the formation of image of an object OA.
An object of length 4 cm is placed in front of a concave mirror at distance 30 cm. The focal length of mirror is 15 cm.
- Where will the image form?
- What will be the length of image?
Complete the following diagrams shown in the below figure by drawing the reflected ray for each incident ray.
