In radio communication, "amplitude modulation" refers to encoding a wave with information by adjusting the height (amplitude) of the waves. <em>(a)</em>
The answer is: to determine that electric beams in cathode ray tubes were actually made of particles
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Answer:
There are so many questions which one you don't know
<span>208.3 meters
The product of the wavelength multiplied by the frequency will equal the speed of light which is 299792458 m/s. Simple algebra will tell you that you can divide the speed of light by the frequency to get the wavelength. So
224997958 m/s / 1080000 1/s = 208.3314426 m
Rounding to 4 significant digits gives you 208.3 meters.</span>
