Advertisements
Advertisements
Question
What is the relationship between the focal length and radius of curvature?
Advertisements
Solution
The relationship between the focal length, f, and radius of curvature, r is
f = 1/2 x r.
APPEARS IN
RELATED QUESTIONS
What is the name of the phenomenon in which the right side of an object appears to be the left side of the image in a plane mirror?
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?
A concave lens produces an image 20 cm from the lens of an object placed 30 cm from the lens. The focal length of the lens is:
(a) 50 cm
(b) 40 cm
(c) 60 cm
(d) 30 cm
Define the following terms in the context of spherical mirrors :
(i) Pole
(ii) Centre of curvature
(iii) Radius of curvature
(iv) Principal axis
The erect image formed by a concave mirror is of size double the size of object. How are u and v related?
Define the term Principle focus.
Define the radius of curvature.
