The unit of focal power of lense is :
AWatt
BHorse power
CDioptre
DCandella
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Related Questions:
The image of an object formed on the retina of human eye is:
Power of a lens is 10 D, its focal length 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?
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_______?