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اختبار امواج
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Q1
Score: 20
ربع طول الموجة
نصف طول الموجة
طول الموجة
Q2
Score: 20
تنخفض للنصف
تبقى نفسها
تزداد للضعف
Q3
Score: 20
قطار امواج متقدمة
موجة مستقرة عرضية
موجة مستقرة طولية
Q4
Score: 20
صفر
90
180
Q5
Score: 20
نصف طول الموجة
ثلاث اربع طول الموجة
ربع طول الموجة
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