首先,句子 “The speed of radio waves is equal to _ light.” 想要表达的是 “无线电波的速度等于光(的速度)”。这里需要一个代词来指代 “the speed(速度)” 这个单数概念。“this” 一般指较近的事物或概念,在这里不适合指代前面提到的 “speed”,而且没有 “this of” 这种用法来表示所属关系,所以 ...
The frequency is the number of waves that pass through any particular point in 1 second. Figure1 The speed, wavelength and frequency of a wave are related by the equation: c = λν where λ and ν are expressed in meters ( m ) and reciprocal secon...
7.【答案】B【核心短语/词汇】the speed of ...的速度;be equal to和...相等【翻译】无线电波的速度和光的速度相等。【解析】根据题干分析,本题考察指示代词的用法。根据句意,空缺处需要意思为...的速度。因此需要一个指示代词指代speed,且前面出现了无线电波的速度,因此此处用that ,不用 this。且介词...
If amplifudes of two waves are equal then intensity of dark point is zero. If amplitudes of two waves are not equal then the intnsity of dark point increases according to equation R= sqrt(a(1)^(2)+a(2)^(2)+2a(1)a(2) cos (alpha(1)- alpha(2)))
How to Find the Frequency of Light from its Wavelength Step 1: Identify the value of the wavelength given within the problem. Step 2: Substitute the wavelength value into the wavelength equation to determine the frequency of the light wave. What are Wave, Wavelength, Frequency, and How is...
What is the frequency of light having a wavelength of 336 nm?Question:What is the frequency of light having a wavelength of 336 nm?Electromagnetic Waves:Electromagnetic (EM) radiation possesses both the properties of a particle and a wave. As a wave it is a periodic oscillation, so it has...
What is the frequency of light if its wavelength is 5.4×10−7 meters? Explain. Frequency and Wavelength The measurement parameters of a light wave are its frequency and wavelength. Distance between two crests or troughs of wave is called wavelength. Frequency gives numbe...
通读第一、二段,根据Everything that humans hear is in the form of waves(波) 。人类听到一切形式都是声波;根据the ear hears sound waves in the form of noises耳朵先听到声波;根据The ear and the eye turn these different waves into signals that the brain(大脑) can make sense of.耳朵再把声...
The frequency of visible light (color) ranges from 430trillion hertz to 750 trillion hertz. Thewavelengths of light that we can see range from 400 to 700 nanometers.Insert context header here:Insert context explanation here...Answer and Explanation: ...
A unit used to measure the frequency of vibrations and waves. One hertz is equal to one cycle per second. Radio waves are usually measured in megahertz, or millions of hertz. The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Pu...