[填空题]
A lens is made of a material with an index of refraction no/- ,u )vhlk ;wyih): xai+n:gd.hewu = 1.30 In aia nno:8 +s0r)kemz:+ zywz t0dr, it is a convergiz 0ank ewm8 s :o+yr0dzzn+:)tng lens. Will it still be a converging lens if placed in water? Explain, using a ray diagram.
