Advertisements
Advertisements
प्रश्न
The radius of curvature of a convex mirror is 40 cm. Find its focal length.
बेरीज
Advertisements
उत्तर
Focal length = ½ (Radius of curvature)
Or, f = `40/2` = 20 cm
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Explain the following term related to spherical lenses:- optical centre
We can obtain an enlarged and erect image by a convex mirror.
What kind of mirror is required for obtaining a virtual image of the same size as the object?
Write true or false
A virtual image formed by a spherical mirror is always erect and situated behind the mirror.
A straight stick partly dipped in water obliquely appears to be bent at the surface of the water.
Define the following term in relation to concave mirror.
Principal axis
Name the type of mirror having a focal length of +20 cm.
Name the type of mirror having a focal length of -15 cm.
Write the sign convection used in optics.
Define the term Focus of a concave mirror.
