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Explain the following term related to spherical lenses:- principal axis
Explain the following term related to spherical lenses:- principal focus
Explain the following term related to spherical lenses: focal length
Name the kind of mirror used to obtain
(a) a real and enlarged image
(b) a virtual and enlarged image
(c) a real and diminished image, and
(d) a virtual and diminished image.
An object forms a virtual image which is 1/8th of the size of the object. If the object is placed at a distance of 40 cm from the convex mirror, calculate:
- the position of the image
- the focal length of the convex mirror.
Define the following term:
convex mirror
Define the following term in relation to concave mirror.
Radius of curvature
AB is the object, A'B' is the image, and MM' is the position of the mirror. Complete the ray diagram showing the formation of the image and find the focal length of the mirror.
The radius of curvature of a spherical mirror is 18 cm. What is the focal length of this mirror?
