問題詳情
14.在針孔成像的實驗中,一長為3cm的燭焰和光屏之間的距離為80cm,鑽有針孔的紙板放在離蠟燭20cm的位置,則光屏上所見燭焰的像
(A)長度0.75cm,正立
(B)長度12cm,正立
(C)長度9cm,倒立
(D)長度0.75cm,倒立
(E)長度12cm,倒立。
(A)長度0.75cm,正立
(B)長度12cm,正立
(C)長度9cm,倒立
(D)長度0.75cm,倒立
(E)長度12cm,倒立。
參考答案
答案:C
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)
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