MHT CET 2024 Physics question
A tuning fork of frequency 340 Hz is vibrated just above a tube of 120 cm height. Water is slowly poured in the tube. What is the minimum height of water necessary for resonance is
Answer: (A)
Solution
The tube is closed at the bottom by the water surface, so it behaves as a closed pipe and resonates when the air column length is an odd multiple of . Taking the speed of sound as m/s, m cm, so resonance occurs for air columns of cm,
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account