In V model there is two-part verification and validation.
In verification it will check weather the system as per SRS 
and get it scope or not. 
In validation it will check weather the system working as 
per SRS and FS or not. 
In this Model on every stage simultaneous testing i.e. 
verification will be done
As first use case design verification will be UAT.
In SRS and FS verification will again test SRS and FS.
In design the tester will have Design Testing.