A long tube contains air at a pressure of `1 atm` and a temperature of `107^(@) C`. 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 distance `19 , 58.5 and 98 cm` from the open end. The speed of sound at `10^(@) C` isA. `330 m//s`B. `340 m//s`C. `395 m//s`D. `495 m//s`

A long tube contains air at a pressure of `1 atm` and a temperature of

1.	A long tube contains air at a pressure of `1 atm` and a temperature of `107^(@) C`. 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 distance `19 , 58.5 and 98 cm` from the open end. The speed of sound at `10^(@) C` isA. `330 m//s`B. `340 m//s`C. `395 m//s`D. `495 m//s`
Answer» Correct Answer - C Velocity of sound at `107^(@) C = 2 n (l_(2) - l_(1)) = 2 xx 500(58.5 - 19) xx 10^(-2)` `= 395 m//s`

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