Two metal rods are made of different elements. The interatomic spring stiffness of element A is 7 times larger than the interatomic spring stiffness for element B. The mass of an atom of element A is 7 times greater than the mass of an atom of element B. The atomic diameters are approximately the same for A and B. What is the ratio of the speed of sound in rod A to the speed of sound in rod B?
A) The ratio of the speed of sound in rod A to the speed of sound in rod B is 0.5.
B) The ratio of the speed of sound in rod A to the speed of sound in rod B is 1.
C) The ratio of the speed of sound in rod A to the speed of sound in rod B is 2.
D) The ratio of the speed of sound in rod A to the speed of sound in rod B is 6.
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