Child theme query

Suppose there is a parent theme folder X, which has a template file t.php inside a sub-folder Y.

Now I create a child theme folder Z, create a sub-folder Y, and put a different t.php inside it.

Should t.php of the child theme replace t.php of the parent theme? I was trying it on a child theme, and it didn’t work. Is there a way to make it work?

Thanks. 🙂