Match the following:
A bob of heavy mass \(m\) is suspended by a light string of length \(l\). The bob is given a horizontal velocity \(v_0\) as shown in figure. If the string gets slack at some point P making an angle \( \theta \) from the horizontal, the ratio of the speed \(v\) of the bob at point P to its initial speed \(v_0\) is :
A chemical element with the symbol Cl and the atomic number 17 is ‘Chlorine’. It is the second-lightest of the halogens that appears between fluorine and bromine in the periodic table and its properties are median between them. At room temperature, it is a yellow-green gas. Also, it has two stable isotopes, 35Cl and 37Cl. These are the only two natural isotopes occurring in quantity, with 35Cl making up 76% of natural chlorine and 37Cl making up the remaining 24%.