مسائل في الضوء

[السيد سليم]

تم ضبط ميكروسكوب علي علامة معينة بمنضدة وعندما غطيت العلامة بلوح زجاجي سمكه 2 سم كان لابد من رفع الميكروسكوب لأعلي 0.67 سم لكي تظهر العلامة في البؤرة مرة أخري 0 احسب معامل انكسار الزجاج

[السيد سليم]

المساله الثانية

يمر ضوء طوله الموجي 5 سم في سائل إحسب تردد الضوء المار في السائل اذا كان
معامل الإنكسارللسائل يساوي 1.5

[زملكاوى عنيد]

شكرا جزيلا و ياريت امتحانات اوس وج باستمرار

[السيد سليم]

ان شاء الله

[الاستاذ محمد على الطنطاوى]

نحسب اولا سرعة الضوء فى السائل من العلاقة

معامل الانكسار= سرعة الضوء فى الهواء/ سرعة الضور فى السائل
ودا سهل جدا من خلال التعويض
الخطوة الثانية نحسب التردد من العلاقة
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