a lens has a power of -1.25 D. What is the focal length and nature of the lens
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50 cm is nature of lens
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P=1\f
-1.25=1\f
Solve it and u will get the answer
The negative sign indicates lens is concave and diverging
-1.25=1\f
Solve it and u will get the answer
The negative sign indicates lens is concave and diverging
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