Power of lens
Khan Academy India - English
0:00 / 0:00
Power of lens
31 633 просмотра · 8 лет назад
Khan Academy India - English
610 тыс. подписчиков
31 633 просмотра · 8 лет назад
Power is an incredibly useful quantity when it comes to lenses. Let's find out what it is and where it is used.
Created by Mahesh Shenoy
