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【简答题】
为看清4km处相隔150mm的两个点(设1'=0.0003rad)，用开普勒望远镜观察， (1) 求开普勒望远镜的工作放大倍率。 (2) 若筒长L=100mm，求物镜和目镜的焦距。 (3) 物镜框是孔径光阑，求出瞳距离。 (4) 为满足工作放大率的要求，求物镜的孔径。 (5) 视度调节在±5D(屈光度)，求目镜的移动量。 (6) 若物方视场角2ω=8°求像方视场角。 (7) 渐晕系数K=50%，求目镜的孔径。
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