The unit of focal power of lense is :
AWatt
BHorse power
CDioptre
DCandella
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Related Questions:
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_______?
Power of a lens is 10 D, its focal length is :
A convex lens produces a magnification of-3 for an object placed at 1.5 m from the leas. Find the image distance (with correct sign).
______ mirror is used in motor vehicles as rear view mirror.
The image of an object formed on the retina of human eye is: