“UV rays”是英文“Ultraviolet rays”的缩写,意为“紫外线”。选项分析如下: - **A. 闪电**:对应英文“lightning”,与紫外线无关。 - **B. 沙尘**:对应“sand/dust”,属于气象或环境术语,与UV无关。 - **C. 紫外线**:Ultraviolet(UV)的中文直译,正确对应。 - **D. 超声波**:对应“ultrasonic”...
What is the frequency of ultraviolet light that has a wavelength of 338.3 nm? What is the wavelength of ultraviolet light whose frequency is 5.57 x 10^15 Hz? ___ nm What is the frequency of an ultraviolet photon with a wavelength of 91 nm? ...
UV是“Ultraviolet”(紫外线)的缩写,“rays”指光线,因此“UV rays”对应“紫外线”。 选项分析: A. 沙土(Sand/Soil)——与紫外线无关。 B. 闪电(Lightning)——可能伴随电磁波,但非紫外线缩写。 C. 紫外线(Ultraviolet)——唯一正确匹配。 D. 超声波(Ultrasonic)——缩写为“US”,与“UV”无关。 题目...
Answer to: What is the frequency of a photon of ultraviolet radiation with a wavelength of 365nm? By signing up, you'll get thousands of...
Visible light is located somewhere in between with wavelengths extending from 4000 to 7000 Angstrom. Irrespective of their frequency, all electromagnetic waves travel in vacuum with the same speed c=3×108 m/s.Answer and Explanation: X-rays are electromagnetic...
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What do the under words “UV rays” mean? A. 沙土 B. 闪电 C. 紫外线 D. 超声波 相关知识点: 试题来源: 解析 To have a face-to-face interview with Jeff Smith, you can get there ___. A. at 8:45 a.m. on Sunday B. at 5:00 p.m. on Saturday C. at 9:15 a.m. on Mo...
百度试题 结果1 题目( )4. What do the underlined words“UV rays” mean? A. 沙尘 B. 闪电 C. 紫外线 D. 超声波 相关知识点: 试题来源: 解析 1.C 反馈 收藏
What is the kinetic energy of the emitted electrons when cesium is exposed to UV rays of frequency 1.3×1015 Hz? Photoelectric Effect When an incident photon strikes a metal surface with strong enough energy, some of the electrons will be knocked off ...
Ultraviolet light is a part of the electromagnetic spectrum. Ultraviolet rays have frequencies greater than the frequency of visible light but lower than the frequency of X-rays. The wavelength of ultraviolet light is shorter than visible light and longer than that of X-rays. On interaction with...