Harrow High School | Academy in Harrow, West London

What is the phase difference between two points that are 50 mm apart on the string? A: zero; B. 90° C. 180° D. 360° (Total 1 mark) Q9. Two radio transmitters emit waves at a frequency of 1.4 MHz. A stationary wave is set up between the two transmitters due to the superposition of the radio waves. ................
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