Answer:
When two tuning forks are struck simultaneously they produce sound waves almost in the same phase. Their phase difference, if any, varies slowly with time. Interference pattern also varies slowly with time. Such variations can be detected easily by the human ear. So interference pattern is easily observable. The phase difference between two independent light bulbs changes \[\text{1}{{0}^{\text{8}}}\] times per second. The interference pattern also changes \[\text{1}{{0}^{\text{8}}}\] times pen second. Such rapid variations cannot be detected by our eyes. So interference pattern is not observable.
You need to login to perform this action.
You will be redirected in
3 sec
