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A converging thin lens made out of crown glass (n=1.52) has a focal length f=1.0m An identical lens (same radius for the spherical surfaces), made out of a high-index plastic with n=1.70 will be ...

A. Converging with a focal length smaller than 1.0 m

B. Diverging with a focal length smaller than 1.0 m

C. Converging with a focal length exactly equal to 1.0 m

D. Converging with a focal length larger than 1.0 m

E. Diverging with a focal length larger than 1.0 m