MHT CET 2024 Physics question
Two sound waves having frequencies 250 Hz and 256 Hz superimpose to produce beat wave. The resultant beat wave has intensity maximum at t =0. After how much time an intensity will be minimum produced at the same point ?
Answer: (D)
Solution
The beat frequency is , so the time between two successive intensity maxima (the beat period) is . The resultant amplitude is ; it is maximum at and first becomes zero when
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