The sentence "Studying in the library my phone suddenly rang loudly disturbing the quiet atmosphere" contains a misplaced modifier. A misplaced modifier occurs when a word or phrase is not located in its intended position within the sentence, creating confusion or ambiguity. In this case, the modifier "Studying in the library" is intended to modify the subject of the sentence, which is "I" or "me," but it is placed at the beginning of the sentence without a clear connection to any noun. To correct the sentence and avoid the misplaced modifier, you could rephrase it as "While I was studying in the library, my phone suddenly rang loudly, disturbing the quiet atmosphere."
