【题目】DBlue light is a type of electromagnetic radiation(电磁辐射) with a very short wavelength thatproduces a high amount of energy. While it'strue that light can damage your eyes under certain conditions, there's no scientific evidencesuggesting that blue light is harmful to our eyes. ...
Passage 5Blue light is a type of electromagnetic radiation电磁辐射)with a very short wavelength that pro-duces a large amount of energy. It's true that lightt can1 your eyes under certain situations. But there'sno scientific explanation 2 that blue light is harm-ful to our eyes. But many...
百度试题 结果1 题目20 A wave of frequency 6600 Hz travels 1320m in 4.0 s.What is the wavelength? A A 0.050m B 0.80m C 1.3m D 20m 相关知识点: 试题来源: 解析 A 反馈 收藏
21 A wave moves along the surface of water.What is the wavelength of the wave? A A the distance between one crest and the next crest B the distance that a crest moves along the surface in one second C the distance that a particle of water moves up and down D the number of waves ...
9 The wavelength of a progressive wave is defined as the distance between adjacent points on the wave which C A have the same displacement. B have the same amplitude. C are in phase. D are in antiphase. 相关知识点: 试题来源: 解析 CA-not a correct descriptionB-not a correct description...
In this paper, the results of a series of experiments on wave-induced pore-water pressures around a mono-pile are presented. Unlike the previous study, in which the mono-pile was fully buried, the mono-pile in this study was installed at 0.6 m below the
In particular, it can provide simple explanations about negative energy waves [16], wave-induced currents [17], over-reflection phenomenon [18,19], etc. Besides, when the wavelength of interfacial disturbances is considerably larger than the characteristic width of the shear flow profile, the ...
3:The wavelength will be doubled if the frequency is cut to half, because the speed does not change, so the length will change. c = f λ. 结果一 题目 The wavelength of a sound wave in this room id 1.13 m and the frequency is 301 Hz.1.what is the speed of the wave in the ...
We report on the spectral properties of a diode laser with a tunable external cavity mirror, realized as an integrated optics waveguide circuit. Even though the external cavity is short compared to that of other narrow bandwidth external cavity lasers, the spectral bandwidth of this tunable laser ...
Wavelength and Frequency:The wavelength of a wave describes its periodicity in space. It is the minimum distance traveled by the wave before its shape begins to repeat. Frequency is another parameter used to describe waves. It is defined as the number ...