What is?
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I get that you might be new to this stuff, but asking for definitions of basic terms without trying to figure them out yourself first wont win you many friends here. We have all had to put in the work as newbies. Search engines and forum archives are your friends - use them before asking others to explain everything.
I dont mean to be harsh. But taking some initiative to educate yourself shows you respect people's time and post thoughtful, specific questions after doing your own research. That is the best way to get helpful answers from this community of experienced people. We have all been where you are. But with a little grit and patience on your end, you will get there too.
Where do wrongly transferred bitcoin goes ? if mistakenly sent to a wrong address can it be recovered? If it lost does it add any value to bitcoin price?
It goes to whatever address you sent it to. Unfortunately, it is usually not recoverable. The scarcity could theoretically drive the value up: fewer Bitcoins in the market mean a higher price, assuming demand is constant.