Which of the following is/are necessary for the production of interference with two wave trains?...
PHYSICS
WAEC 1990
Which of the following is/are necessary for the production of interference with two wave trains? I. The sources must be close to each other. II The waves must have the same frequency. III. The waves must have the same amplitude. IV. The waves must travel with the speed of light.
- A. I, II and IV only
- B. I, II and III only
- C. I and II only
- D. II, III and IV only
Correct Answer: B. I, II and III only
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