Primary Key

Hello Friends I have a problem so please help me.

 

My problem is that we all know that is a table contain a primary key then a clustered index in generate.  A Clustered Index is a special type of index that reorders the way records in the table are physically stored. Therefore the table can have only one Clustered Index.

If a have a table 

 

and i create  a primary key on Emp_Id cloumn then a B-Tree will generate(in Clustered Index)

that store the data in such a way

 We know that in clustered index data always store  in sorted form.  Sorting always performed on the base of primary key. 

 

My Confusion that how data will be sort if we create a primary key on more than one column

like:

Alter Table Employee

Add constraint Constraint_Name Primary Key(Emp_IId,Emp_Age)