Synchronization point is techniques through which we are 
synchronize the execution time and application execution 
performance timing.

There are two type of synchronization point
1. Sync
2. Wait

Examples
Browser ("XYZ").Page ("ABC").sync
Or 
Browser ("XYZ").navigate ("www.google.com")
Wait (10)

If you have any doubt the please revert back to me.

Can u Please elloborate the examples, since I am new to 
testing ang QTP

Synchronization point is techniques through which we are 
synchronize the execution time and application execution 
performance timing.

There are three type of synchronization point
1. Sync
2. Wait
3. Exist

Examples
1. Browser ("XYZ").Page ("ABC").sync
In the above example  sync is inbuild function of qtp which 
wait till the page is completely loaded. you can give the 
maxmum time by Browser ("XYZ").Page ("ABC").sync(10) also.

2. Browser ("XYZ").Navigate ("www.google.com")
Wait (10)

In the above example script will wait for 10 sec. it is 
independent to the process of page load.

3. Browser ("XYZ").Page ("ABC").exist(10)
In the above example script will chaeck the existence of 
page abc once it found it will execute next step.
10 is the maximum time  which is optional.
If you have any doubt then please mail me at
ajayjha101@hotmail.com

If you have any doubt the please revert back to me.

Synchrozination point used to instruct QTP to pause the 
test until a particular object property achieves the value 
you specify. QuickTest generates a WaitProperty statement 
in the Expert View. For example, if you want the run 
session to wait up to 10 seconds for the "Flight 
Confirmation #" field get visible (true), you insert the 
following statement: 

Browser("Welcome: Mercury Tours").Page("Flight 
Confirmation: Mercury").WebElement("Flight Confirmation 
#").WaitProperty "visible", true, 10000

Got it, Thanks to Ajay and Nalini