How telescopes work | Class12 (India) | Physics | Khan Academy
6:30
Magnifying power of telescope | Class 12 (India) | Physics | Khan Academy
6:19
The Basic Telescope Types- OPT
14:06
Lens maker formula (short derivation) | Class 12 (India) | Physics | Khan Academy
12:05
How Optics Work - the basics of cameras, lenses and telescopes
14:10
Simple microscope | Class 12 (India) | Physics | Khan Academy
7:54
How Do Telescopes Work? | Earth Science
15:01
Simple microscope - max & min power | Class 12 (India) | Physics | Khan Academy
12:00