physics ! 筷子插入水裏會bent upward ?? 急

一枝筷子插左入水到佢就會bent upward.. 但點解唔會bent downtard?

[我畫左個normal 在筷子插入水裏的那個交點]

(因為我將筷子當做light ray黎睇 ,, 咁光線射入水到 ,,, 係bent toward normal 所以咪 downward 囉 ,,,) 但係上堂老師畫比我地個圖係upward

我當中錯左d咩 ??

1 Answer

Rating
  • 1 decade ago
    Favorite Answer

    因為光線係由物件射出水面,

    (唔係光線射入水到)

    so 如果你將筷子當做light ray黎睇,

    枝筷子出水面之後係 bent away from the normal,

    所以咪 bent upward 囉 ^^!

    2008-11-03 21:27:22 補充:

    枝筷子出水面之後係 bent away from the normal,

    筷子係水入面果part 會好似屈左上嚟咁,

    所以bent upward.....

    Source(s): me
Still have questions? Get your answers by asking now.