放大镜原理的题!(放大镜的原理)为什么物体只要在凸透镜焦点以内,都能在同侧成一个正立放大的虚象?那不在焦点以内,又会怎样呢?为什么把物体的像放大些,要在物距小于焦距的大前提下
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![放大镜原理的题!(放大镜的原理)为什么物体只要在凸透镜焦点以内,都能在同侧成一个正立放大的虚象?那不在焦点以内,又会怎样呢?为什么把物体的像放大些,要在物距小于焦距的大前提下](/uploads/image/z/12604799-47-9.jpg?t=%E6%94%BE%E5%A4%A7%E9%95%9C%E5%8E%9F%E7%90%86%E7%9A%84%E9%A2%98%21%EF%BC%88%E6%94%BE%E5%A4%A7%E9%95%9C%E7%9A%84%E5%8E%9F%E7%90%86%EF%BC%89%E4%B8%BA%E4%BB%80%E4%B9%88%E7%89%A9%E4%BD%93%E5%8F%AA%E8%A6%81%E5%9C%A8%E5%87%B8%E9%80%8F%E9%95%9C%E7%84%A6%E7%82%B9%E4%BB%A5%E5%86%85%2C%E9%83%BD%E8%83%BD%E5%9C%A8%E5%90%8C%E4%BE%A7%E6%88%90%E4%B8%80%E4%B8%AA%E6%AD%A3%E7%AB%8B%E6%94%BE%E5%A4%A7%E7%9A%84%E8%99%9A%E8%B1%A1%3F%E9%82%A3%E4%B8%8D%E5%9C%A8%E7%84%A6%E7%82%B9%E4%BB%A5%E5%86%85%2C%E5%8F%88%E4%BC%9A%E6%80%8E%E6%A0%B7%E5%91%A2%3F%E4%B8%BA%E4%BB%80%E4%B9%88%E6%8A%8A%E7%89%A9%E4%BD%93%E7%9A%84%E5%83%8F%E6%94%BE%E5%A4%A7%E4%BA%9B%2C%E8%A6%81%E5%9C%A8%E7%89%A9%E8%B7%9D%E5%B0%8F%E4%BA%8E%E7%84%A6%E8%B7%9D%E7%9A%84%E5%A4%A7%E5%89%8D%E6%8F%90%E4%B8%8B)
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