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
The shiny outer surface of a hollow sphere of aluminium of radius 50 cm is to be used as a mirror:
Which type of spherical mirror will it provide?
Name the kind of mirror used to obtain:
A real and diminished image.
An object 5 cm high is placed at a distance 60 cm in front of a concave mirror of focal length 10 cm. Find the position and size of the image.
Draw a ray diagram to show the formation of the image, when the object is placed between optical centre and principal focus of a convex lens.
State the signs and values of magnifications in the above mentioned case.
Define linear magnification produced by a mirror?
Complete the following diagrams shown in the following figures by drawing the reflected rays.
Define the term Pole.
Assertion: Incident ray is directed towards the centre of curvature of spherical mirror. After reflection it retraces its path.
Reason: Angle of incidence (i) = Angle of reflection (r) = 0°
In torches, search lights and headlights of vehicles the bulb is placed ______.
