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Write the formula for a lens connecting image distance (v), object distance (u) and the focal length (f). How does the lens formula differ from the mirror formula?
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.
Figure shows a concave mirror with its pole at P, focus F and centre of curvature C. Draw ray diagram to show the formation of image of an object OA.
How is the focal length of a spherical mirror related to its radius of curvature?
Define the following term in relation to concave mirror.
Pole
Define the following term in relation to concave mirror.
Principal axis
The distance from the pole to the focus is called ______.
Size of image of an object by a mirror having a focal length of 20 cm is observed to be reduced to 1/3rd of its size. At what distance the object has been placed from the mirror? What is the nature of the image and the mirror?
For a spherical mirror, ______ is true.
