Section-C: Comprehension Type
A long tube contains air at a pressure of 1 atm and a temperature of 59fC. The tube is open at one end and closed at the other by a movable piston. A tuning fork near the open end is vibrating with a frequency of 500 Hz. Resonance is produced when the piston is at distances 16 cm, 49.2 cm and 82.4 cm from open pipes, molar mass of air is 28.8 g/mol.
Ratio of heat capacities at constant pressure and constant volume for air at 59f C is