What is the strength of any material... For SSC-JE

Now all videos are dedicate to SSC-JE candidates... Videos ko last tk dekhe last m kuch intresting btaya h.. Videos ab jaldi jaldi aati rhegi.. Koi b problem ho to comment box m comment kar skte h.. M agli video m defiantly use cover krunga with name jisne b vo problem puchi hogi...
First video- Introduction of strength of material =
Secondvideo- types of solid material=

SSC-JE