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A thin lens has a focal length of -25cm . What is the power of the lens and what is its nature ( type of lens ) ? ans to d above question...NO SPAM❌​

Answer»

Power of LENS is P= f1​  ,focal LENGTH should be in meterf=−25cm=−.25mso P= −0.251​ =−4DSince the focal length is negative, it is a CONCAVE lens or DIVERGING lensExplanation:



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