Physics
Senior High
想問這題為什麼不是25+2而是25-2,成虛像應該是兩者同向不是嗎
●類題7.1
以焦距 5cm 的凸透鏡作為放大鏡,觀看郵票上的圖案,若眼睛距離放大鏡2cm,所成的像出
離眼睛 25cm,則圖案的大小被放大 13.5 倍。
hi -%
m=
:
ho
5.6
2512-27-8
+27
11 eyes
25
2
27
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