问一道初二物理问题
\u95ee\u4e00\u9053\u521d\u4e8c\u7269\u7406\u9898\uff0c\u6025\uff01\uff01\uff01\uff01\u8bbe\u50cf\u7684\u9ad8\u5ea6\u4e3ay,\u50cf\u5230\u5c0f\u5b54\u7684\u8ddd\u79bb\u4e3ax,\u6bd4\u6570\u4e3aa
\u5219\u53ef\u5f97y=ax
\u901a\u8fc7\u9898\u610f\u53ef\u77e5\uff0cy=7.0\u5398\u7c73\uff0cx=7.5\u5398\u7c73\uff0c\u5c06\u5176\u5e26\u5165\u4e0a\u5f0f\u4e2d
\u5219a=7.0/7.5(\u4e0d\u5fc5\u6c42\u51fa\u6570\u503c\uff0c\u56e0\u4e3a\u662f\u65e0\u9650\u7684)
\u6839\u636e\u6210\u50cf\u7684\u539f\u7406\uff0c\u5219\u592a\u9633\u7684\u76f4\u5f84=a\u00d71.5\u00d7\uff0810\u768411\u6b21\u65b9\uff09\u7c73
\u628aa\u5e26\u5165
\u5219\u592a\u9633\u7684\u76f4\u5f84=(7.0/7.5)\u00d710(10\u7684\u8d1f3\u6b21\u65b9)\u00d7\uff0810\u768411\u6b21\u65b9\uff09 \u7c73
\uff08\u6ce8\u610f\u6362\u7b97\u5355\u4f4d\uff09
=1.4\u00d7(10\u7684\u4e5d\u6b21\u65b9\uff09\u7c73
\u5229\u7528\u58f0\u97f3\u5728\u7a7a\u6c14\u4e2d\u548c\u94a2\u8f68\u4e2d\u4f20\u64ad\u901f\u5ea6\u4e0d\u540c\uff0c\u4e00\u4e2a\u4eba\u5728\u94c1\u8def\u8fd9\u5934\u6572\u51fb\u94a2\u8f68\uff0c\u53e6\u4e00\u4e2a\u4eba\u5728\u53e6\u4e00\u7aef\u542c\u58f0\u97f3\uff0c\u4f1a\u542c\u5230\u4e24\u6b21\u58f0\u97f3\uff0c\u5206\u522b\u662f\u4ece\u94a2\u8f68\u548c\u7a7a\u6c14\u4e2d\u4f20\u8fc7\u6765\u7684\uff0c\u7a7a\u6c14\u4e2d\u58f0\u97f3\u4f20\u64ad\u901f\u5ea6\u6309340m/s\u7b97\u7684\u8bdd\uff0c\u94c1\u8def\u957f\u5ea6\u8bbe\u6210x\u5c31\u662fx/340-x/5200=1.5,\u7b97\u51fa\u6765\u5c31\u662f545.7m
因为光线进入水中会发生折射，人眼看到的鱼实际上是被水面折射后的变浅了的虚像，实像在后下方，所以渔夫向后下方叉鱼。因为水有折射的角度
因为水有折射的角度 ,总是使实际看得较浅
是光的折射
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