NEET Odisha 2019 Physics and Chemistry

Question : 4 of 90

Marks: +1, -0

A tuning fork with frequency 800‌Hz produces resonance in a resonance column tube with upper end open and lower end closed by water surface. Successive resonance are observed at length 9.75‌cm,31.25‌cm and 52.75‌cm. The speed of sound in air is :-