gc textbook chapter 11 Vibrations and Waves (id: e83a778e7)

本题目来源于试卷: gc textbook chapter 11 Vibrations and Waves，类别为 通用国际物理

[填空题]
(a) AM radio signals have frequencies b :rc,yrvux t9 r31jk9ietween 550 kHz1un32zc0gc vh and 1600 kHz (kilohertz) and travel with a 3 v1hz2ccnu0gspeed of $ 3\times10^{8 }$ m/s What are the wavelengths of these signals?    m to    m(b) On FM, the frequencies range from 88.0 MHz to 108 MHz (megahertz) and travel at the same speed; what are their wavelengths?   m to    m

参考答案:
空格1: 190±2%  空格2: 550±2%  空格3: 2.78±2%  空格4: 3.41±2% 


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