Concave lenses | Geometric optics | Physics | Khan Academy
54 بار بازدید -
7 سال پیش
-
Concave Lenses. Created by Sal
Concave Lenses. Created by Sal Khan.
Watch the next lesson: https://www.khanacademy.org/science/physics/geometric-optics/mirrors-and-lenses/v/object-image-and-focal-distance-relationship-proof-of-formula?utm_source=YT
7 سال پیش
در تاریخ 1396/12/27 منتشر شده
است.
54
بـار بازدید شده