Q. Two identical piano wires have a fundamental frequency of 600 Hz while kept under the similar tension. What fractional enhancement in the tension of one wire would lead to occurrence of 6.00 beats/s while both wires oscillate simultaneously?
Q. A tank having a volume of 0.100 m3 contains helium gas at 180 atm. How various balloons can the tank blow up if each filled balloon is a sphere 0.300 m in diameter at an absolute pressure of 1.50 atm?