用下表三台显微镜(编号为A、B、C)分别观察同一装片的洋葱表皮细胞.请回答下列问题:台号目镜物镜A5×8
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显微镜的放大倍数═物镜放大倍数×目镜放大倍数.在A中:显微镜的放大倍数为5×8═40倍;B中:显微镜的放大倍数为10×10═100倍;C中:显微镜的放大倍数为15×40═600倍.(1)只有放大倍数最小,看到的细胞数目才最多.A组中,显微镜的放大倍数最小,所以观察到的细胞数目最多.
(2)只有放大倍数最大,观察到的单个细胞的面积才会最大.C组中,显微镜的放大倍数最大,所以观察到的单个细胞的面积最大.
(3)在目镜中:目镜越长,放大倍数越小;在物镜中,物镜越短,放大倍数越小.
故答案为:(1)A
(2)C
(3)A
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