accounting master class and this is the 15th lecture on the subject economics new topic marginal the production is a process [Music] this is production function the production function gives the relationship between production function data so input and physical output of a factor it so this is variable so this factor capital is required agar production 45 unit production banana those six labors and four unit of capital is required okay variable period as the output increases ratio between l and k remain constant to ratio that change with the level of output output ratio between l and k varies between l and k it remains same it remains to return god bless you