How to Find Application Top by particular application name

  SELECT    B.APPLICATION_ID,
                    B.APPLICATION_SHORT_NAME,
                    B.BASEPATH APPLICATION_TOP,
                    T.APPLICATION_NAME,
                    T.DESCRIPTION,
                     B.PRODUCT_CODE
     FROM   FND_APPLICATION_TL T
                  ,FND_APPLICATION B
    WHERE   B.APPLICATION_ID = T.APPLICATION_ID
     AND    T.APPLICATION_NAME = :KNOW_APPLICATION_NAME