تعليم سعودي

مصباح كهربائي تدفقه الضوئي 800lm يبعد عن رف المكتبة 1m وعن سطح طاولة المكتب 2m وعن أرضية الغرفة 3m أي مما يلي أكثر استضاءة

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مصباح كهربائي تدفقه الضوئي 800lm يبعد عن رف المكتبة 1m وعن سطح طاولة المكتب 2m وعن أرضية الغرفة 3m أي مما يلي أكثر استضاءة:

اهلا وسهلا بكم طلابنا الاعزاء من المملكة العربية السعودية مرحباً بكم في موقع" متجر المكتبة "سنقدم لكم اعزائي الطلاب والطالبات حلول جميع الكتب المدرسية والواجبات المنزلية ، ونعمل في موقعنا الالكتروني على مساعدة الطلبة في حل واجباتهم ، ودروسهم واختباراتهم ، حيث نقدم الإجابات الصحيحة والمؤثوقة ، حتى يحصل الطالب/ه‍ , على الدرجة النهائية.

السؤال :مصباح كهربائي تدفقه الضوئي 800lm يبعد عن رف المكتبة 1m وعن سطح طاولة المكتب 2m وعن أرضية الغرفة 3m أي مما يلي أكثر استضاءة؟

سطح الطاولة.

رف المكتبة.

لا فرق بينها في الاستضاءة.

الاجابة النموذجية هي:

رف المكتبة.

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