用光線圖輔助,簡述一個可直接量度一凸透鏡的焦距的實驗....
請告訴我點做阿....?????
2007-01-27 12:34:13 · 1 個解答 · 發問者 Joanne 1 in 科學 ➔ 其他：科學
The simplest method is hold the lens against a distance object, and move a white paper (which acys as a screen) behind the lens until a clear image of the distance object is seen on the paper.
The distance between the lens and the paper will give you the focal length of the lens.
2007-01-27 12:57:00 · answer #1 · answered by 天同 7 · 0⤊ 0⤋