A doctor has prescribed a corrective lens of power -1.5 D find the focal length of the lens is the prescribed lens diverging or converging
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focal lenth is -66.67 and lens is cincave or diverging.
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f = 1/P = 1/(-1.5)
f= -2/3 = -0.66m
f = -66cm and this is diverging lens
f= -2/3 = -0.66m
f = -66cm and this is diverging lens
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