Why is experimental CRSS less than theoretical CRSS? 

Nice explanation

Sir why it requires less energy to break bonds on at a time than all at one go?

nice

Nice

if our theoretically calculated value of CRSS is not experimentally valid then what will be CRSS value for dislocation movement?

Hi sir. If we take a defect or dislocation free crystal will it satisfy theoretical value of schmid during experiment?

Sir,then what is the mechanism of elastic deformation?Is it the same as plastic deformation?

Can someone write an explanation for this?

But sir,everytime we apply stress for slip, there will be dislocation. Then how can we achieve the theoretical crss value??

is the formula derived in earlier lecture for CRSS valid only for single crystal system?

Sir in this diagram where is slip plane Imagine the paper is pasted in wall front of you.

Nice