The unit of focal power of lense is :
AWatt
BHorse power
CDioptre
DCandella
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ലെൻസിന്റെ പവർ അളക്കുന്ന യൂണിറ്റ് :
______ mirror is used in motor vehicles as rear view mirror.
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).
A convex lens forms a real and inverted image twice the size of the object. The magnification produced by the lens is equal to?
The magnification 'm' produced by a convex lens when the object is placed at a distance 2f from the lens is given by?