1) Light is a form of ______. 2) The speed of light is _____. 3) There are luminous and _____ objects. 4) When light passes through one -media to another it bends . This is called as ____. 5) The objects which allow some light to pass through them are called as ______objects.

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

استعادة الحفظ التلقائي: ؟