The Astronomical Telescope
7:53
How telescopes work | Class12 (India) | Physics | Khan Academy
12:05
How Optics Work - the basics of cameras, lenses and telescopes
9:57
This tests your understanding of light | The barber pole effect
5:32
The Telescope | Physics with Professor Matt Anderson | M28-13
24:29
Make Your Own Optical Lenses
10:51
Ray Diagrams
6:30
Magnifying power of telescope | Class 12 (India) | Physics | Khan Academy
12:00