The unit of focal power of lense is :
AWatt
BHorse power
CDioptre
DCandella
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Related Questions:
Power of a lens is 10 D, its focal length is :
An object is placed on the principal axis of a convex lens of focal length 12 cm, at a distance magnification produced by the lens is ______and the image is_______?
An object. 3.0 cm in height, is placed at a distance of 20.0 cm in front of a convex mirror of focal length 6.0 cm. on its principal axis. Its image has a height of _______and is_____?
A convex lens forms a real and inverted image twice the size of the object. The magnification produced by the lens is equal to?
______ mirror is used in motor vehicles as rear view mirror.