什麼是:<b>(a)</b>正常人眼的遠點?<b>(b)</b>正常人眼的近點?

<a href="https://tutorialspoint.tw/articles/category/academic" target="_blank"><span>學術</span></a><a href="https://tutorialspoint.tw/articles/category/physics" target="_blank"><span>物理學</span></a><a href="https://tutorialspoint.tw/articles/category/ncert" target="_blank"><span>NCERT</span></a><a href="https://tutorialspoint.tw/articles/category/class-10" target="_blank"><span>10年級</span></a>

<b>(a)</b>正常人眼的遠點位於<b>無限遠</b>。

<b>(b)</b>正常人眼的近點位於眼睛前方約<b>25釐米</b>。


解釋

<b>遠點</b>是指眼睛可以清晰看到物體的最遠點。正常人眼的遠點在<span style="font-weight: 700;">無限遠</span>。

<span style="font-weight: 700;">近點</span>,也稱為<span style="font-weight: 700;">明視距離</span>,是指正常眼睛在不費力的情況下可以清晰看到物體的最小距離(或最近點)。正常人眼的近點或明視距離約為<span style="font-weight: 700;">25釐米</span>。

<span class="date">更新於:</span>2022年10月10日

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