The power of a lens is +4D. What is the nature of lens

power 4dBox4d services offer statistics on 4d and Toto results for Singapore and Malaysia prediction. 4D search,Toto search,4d analysis, winning solution. Box4d Results 4D results ... [The focal length of a lens with a power of +4D is 25 cm. Show More | Share Save. Class 12 PHYSICS GEOMETRICAL OPTICS. Topper's Solved these Questions. OPTICS BOOK -