16:50

types of solid (part-2)

7:40

technique of calculus of variation (part-3)

16:24

types of solid (part-1)

12:16

micalson interferometer part-2

5:44

Foundation Maths Exercise 14.2

10:16

polarisation of light

11:07

Techniques of calcules of variations

13:31

crystal systems (part-1)