Advertisements
Advertisements
प्रश्न
Define the term principal focus in case of convex mirror. Draw a convex mirror and show its principal focus and focal length clearly.
Advertisements
उत्तर
Focal length is the distance between pole (P) and focus (F)
(F) Focus is a point on principal axis where rays of light appear to meet.
APPEARS IN
संबंधित प्रश्न
A lens forms a real image 3 cm high of an object 1 cm high. If the separation of object and image is 15 cm, find the focal length of the lens.
Draw suitable diagrams to illustrate the action of (i) concave mirror and (ii) convex mirror on a beam of light incident parallel to the principal axis.
How will you distinguish between a plane mirror, a concave mirror and a convex mirror, without touching them?
A straight stick partly dipped in water obliquely appears to be bent at the surface of the water.
Select the correct option:
Looking into a mirror one finds her image diminished, the mirror is:
What is the relation between focal length and radius of curvature of a concave mirror?
Define linear magnification produced by a mirror?
Spherical mirrors are one form of ______ mirrors.
