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العدسات

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About this activity

الصف الثالث الاعدادي

Created by

Yousef Essam
Yousef Essam
Egypt

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العدسات
 

العدساتOnline version

الصف الثالث الاعدادي

by Yousef Essam
1

الشعاع الضوئي الساقط موازيا للمحور الاصلي لعدسة محدبة ،ينكسر ماراً بالبؤرة الاصلية

2

وضع جسم طوله ٣ سم امام عدسة محدبة بُعدها البؤري ٤ سم فتكونت له صورة مصغرة فإن الجسم يقع علي بُعد ...... سم من المركز البصري للعدسة7

3

اذا وضع جسم علي بُعد 22 سم من عدسة محدبة بُعدها البؤري 10 سم تكون صورة الجسم حقيقة مقلوبة مصغرة

4

اذا وضع جسم علي بُعد 22 سم من عدسة محدبة بُعدها البؤري 10 سم تكون صورة الجسم حقيقة مقلوبة مصغرة

5

يحسب البُعد البؤري لعدسة من العلاقة الرياضية ع1/6 × قطر تكور وجه العدسة

 
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