Advertisements
Advertisements
प्रश्न
The radius of curvature of a convex mirror is 40 cm. Find its focal length.
उत्तर
Focal length = ½ (Radius of curvature)
Or, f = `40/2` = 20 cm
APPEARS IN
संबंधित प्रश्न
Explain the following term related to spherical lenses:- principal axis
Name the spherical mirror which can produce a virtual and diminished image of an object.
The shiny outer surface of a hollow sphere of aluminium of radius 50 cm is to be used as a mirror:
State whether this spherical mirror will diverge or converge light rays.
The letters on the front of an ambulance are written laterally inverted like 
. Give reason.
A real and enlarged image can be obtained by using a
At what distance from a concave mirror of focal length 25 cm should an object be placed so that the size of image is equal to the size of the object.
Define linear magnification produced by a mirror?
Name the type of mirror used in the following situation:
Side/rear-view mirror of a vehicle
Support your answer with reason.
