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Yah the correct answer is 20/3 D
Sir what pardha saradhi said is correct sir For FARSIGHTEDNESS lens should be convex then power should be positive i.e,+20/3D
Ans of 2nd Q. should be +20/3.
+Partha Sarathi Behera then why power is coming out to be -ve by calculation
+Mehul Chauhan A long sighted person always use convex lens i.e. +ve power and focal length......
+20/3 ni -20/3 bhai ,baat gaur karne wali ye h ki vo option hi ni h
Sir wave optics v kra do aiims ka