Astring of mass m is under tension, and the speed of a wave in the string is v. what will be the speed of a wave in the string if the mass of the string is increased to 2m but with no change in the length or tension?

Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .