IS TUNGSTEN AN INCANDECANT MATERIAL ?????????????????????????
Kindly refer to the similar link :
https://www.meritnation.com/ask-answer/question/why-is-tungsten-metal-selected-for-making-filaments-of-inca/science/4708369
https://www.meritnation.com/ask-answer/question/why-is-tungsten-metal-selected-for-making-filaments-of-inca/science/4708369