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Hello! Everyone today I want to give you all very instresting question answer. This was done by Spectroscopic method. What is Spectroscopic? The study of emission or absorption Spectra is referred to as Spectroscopy. This is also known as Line emission spectra. These are as finger prints are used to identify people. The exact matching of lines of the emission spectrum of the atoms of a known element with the lines from an unkown sample quickly establishes the identity of the latter, German chemist, Robert Bunsen (1811-1899) was one of the first investigators to use line spectra to identity elements.

Learn how to study for 8 -10 hours. First thing is "Anything is neither hard nor impossible". You should not think about that you can't do this task. Let start our discussion:- If you have problem that I can study 8 to 10 hours, if you can not do this how you can sit for playing pubg(shooting game), Facebook or any social media due to you have to play for increase your publicity and show for your friends and you have to complete your task of upcoming levels and to see what is new in that perticular level. So to start study for 8 to 10 hours you should study like a game which have different- different levels in the study on start of sllaybus. So do these following things:- 1. Come from school or coaching and your class by your mind not from notebook. If any problem occurred in that part then see your notebook to revise.(this will take 2-3 hr.) 2. Do those your home assignment which was given by teacher in that particular day. 3. Read books if any new thing was se