كم من الوقت يلزم الشعاع الشمسي للوصول لسطح الأرض؟
Sunlight takes about 8.3 minutes to reach Earth from the surface of the Sun. A photon starting at the center of the Sun and changing direction every time it encounters a charged particle would take between 10,000 and 170,000 years to get to the surface.
8.3 minutes