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+clear
+//Given
+v=-75.0 //cm
+u=-25.0 //cm
+
+//Calculation
+f=1/((1/v)-1/u)
+P=100/f
+
+//Result
+printf("\n (a) Power of the lens is %0.2f D",P)
+printf("\n (b) The corrective lens produce a virtual imageof an object at 25 cm. The angular size of this image is the same as the object")
+printf("\n (c) A hypermetropic eye may have normal far point.Hence the person prefers not to use the spectacles for distant object")