HELLO TO ALL, I NEED HELP IN COMMON COLLECTOR AMLIFIER.I WANT TO KNOW THAT WHY THERE IS A PHASE SHIFT OF 180 DEGREE COMES IN OUT PUT ?PLZ HELP ME

 

HELLO TO ALL, I NEED HELP IN COMMON COLLECTOR AMLIFIER.I WANT TO KNOW THAT WHY THERE IS A PHASE SHIFT OF 180 DEGREE COMES IN OUT PUT ?PLZ HELP ME

There is no phase shift in a common collector amplifier (emitter follower). Perhaps you meant common emitter? See this thread.

 

Better to post the circuit to see exactly where the output is taken.