Physics-
General
Easy
Question
A string of length
is fixed at one end and carries a mass
at the other end. The string makes
revolutions per
around the vertical axis through the fixed end as shown in figure, then tension in the string is![](https://mycourses.turito.com/tokenpluginfile.php/c161933dbfaab094c54655ab71e9b8f0/1/question/questiontext/903886/1/928100/Picture50.png)
The correct answer is: ![16 blank M L](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAANCAYAAADv5u30AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAMyZLetQAAAZNJREFUeNpjYEAFakBcC8QXGPADUyBeBcSfgPgHEG8CYnsGwgCk1oWAGpD8HyBmQhP/hkUMAywG4jQg/o9HTRrUwWpQPh8QRwPxYQJmq0DNnYJHDQ8QPwTiS1j0XmIgAeDygBYQn2EgDwRAY/Y5HjUzoWqWY9G7nBoeAFkQSaYH6oG4HIhvALE5jqQDCuVGqDpsein2AMhySTI9sAoakq1QjAy4gPgWEBsgqcOml2IP/ICm/XXQTPULmqSiiTAT5EBpaOjfQJObhOSpG1B12PRS7AGQ+Dkg9gJiFmipYA21IAuPeUxQD8MAKB9oQNkg/VeQzPuGRe8XUqMblwc+4QgJUNQ/xWMeKNT3o+WlcqSkY4xDHS4xsj2wDU9Z/AuPeaCMPx8tw54E4glo+QFdHS4xsj0ASibhWMQ1oA7CBSZB6w/kZAGKzWvQpINLHUwskVoeYAPig0CcjGSxObT4w1fDroPmG/RK05gIdSAxD1Icjo7RgSgQz4ZmrD9QD9kSMPcdEHMQYT82de9wuOs/NECHNgAA2oVq86PKc+8AAABtdEVYdE1hdGhNTAA8bWF0aCB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMTk5OC9NYXRoL01hdGhNTCI+PG1uPjE2PC9tbj48bWk+JiN4QTA7PC9taT48bWk+TTwvbWk+PG1pPkw8L21pPjwvbWF0aD5EVkChAAAAAElFTkSuQmCC)
(i)
(ii)
From (i) and (ii)
![T equals M omega to the power of 2 end exponent L](data:image/png;base64,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)
![equals M blank 4 pi to the power of 2 end exponent n to the power of 2 end exponent L](data:image/png;base64,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)
![equals M blank 4 pi to the power of 2 end exponent open parentheses fraction numerator 2 over denominator pi end fraction close parentheses to the power of 2 end exponent L equals 16 blank M L](data:image/png;base64,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)
![](https://mycourses.turito.com/tokenpluginfile.php/c161933dbfaab094c54655ab71e9b8f0/1/question/generalfeedback/903886/1/928100/Picture945.png)
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