What will be a plausible title and text that will still validate the existing answers?
There is no guarantee that such verbiage exists.
Furthermore, repeatedly editing the post, currently at version 37, will probably alienate readers who might be sympathetic. For example, after your question was closed (for the second time) on May 8, it has been subject to six reopen reviews, during which it received eighteen “leave closed” votes and one “reopen” vote. Some of your “leave closed” voters participated in multiple reviews, and probably noticed that several reopen reviews were generated by trivial edits, like bouncing around between “wavelength and frequency,” “wavelength” or “frequency” alone, or sometimes “frequency formula.” The review queues are telling you that the types of changes you are making are not improving your question. Listen to them.
Posts which are edited too many times actually generate a flag for moderators to step in and make sure nothing strange is happening. I don’t know if that threshold is public knowledge or not, but it’s many fewer than thirty-seven edits. Remember that each edit bumps your question to the top of the home page, where it displaces a question by another user who said what they wanted in one go. That’s an inconsiderate way to use the site.
To my eye, the problem with your question is that it’s too broad: the answer occupies a healthy fraction of a chapter in many introductory books. You might mean something more specific, whose answer would be a better fit for our community, but you have not managed to clarify. You have, however, gotten two positively-scored answers for your trouble, and have indicated that one of those answers has solved your problem. That sounds like a successful question to me! The fake internet points only have the value you give them.
Some users whose asking histories have too many downvoted, deleted, or closed questions will be prevented from asking new questions until either (a) their question history is improved, by editing old questions so that they are upvoted or reopened, or (b) waiting for some unspecified period of time to ask a new question.
The exact details of this algorithm are secret, but a question which is downvoted, closed, and deleted counts against you three times — we want our community to produce high-quality, lasting content.
Sometimes a user will fixate on this advice and demand that their old questions be upvoted and reopened so that they can post their next question now. But that’s not how it works. Not every question has a home in our community.
If you are in this situation, use the time you cannot post to read the site. See what types of posts stay open and what types get closed, and try to frame your next question more like the left-open ones.