🔴 COMPOUND MICROSCOPE || in HINDI
24:13
🔴 ASTRONOMICAL TELESCOPE - Part 1 || in HINDI
21:04
🔴 SIMPLE MICROSCOPE || in HINDI
16:06
🔴 ASTRONOMICAL TELESCOPE - Part 2 || in HINDI
21:09
Magnification by a lens - Part 1 | video in HINDI
25:32
Lens Maker's Formula - Part 1 | video in HINDI
18:05
Power of a Lens and its Unit Dioptre | explained in HINDI
21:48
Lens Maker's Formula - Part 3 | video in HINDI
18:46