Not a good first foot forward. You're willing to begin your relationship with a new employer based on dishonesty. Not a good way to start.

I don't even see what people see in wanting to work at Google. If you think you have the technical skills to make it through a Google interview, lots of much better places to work at will pay you just as good as a salary. Google is a corporate behemoth approaching a hundred thousand employees. You're not going to make a difference there like you could somewhere else.