A wave has a wavelength 10-3 nm. (a) Name the wave. (b) State its one property different from light. View Solution A wave has wavelength 50 A. (a) Name the wave. (b) State its speed in vacuum. (c) State its one use.
A sound wave of frequency 500 Hz cobers a distance of 1000 m in 5 s be... 05:30 The minimum time gap between two sounds to be heard distinctly must be... 01:35 A source of frequency 500 Hz emits waves of wavelength 0.2 m. How long... 02:17 which of the following frequencies...
Two-phase flow simulations were performed in OpenFOAM using the RNG k–ε turbulence closure model and the volume-of-fluid method. The simulated angular locations of the first wave extrema and the corresponding flow depths deviate marginally, within ± 6.3% and ± 2.1%, respectively, ...
百度试题 题目频率为500Hz的波,其波速为,相位差为的两点的波程差为( ) A. 0.12m B. C. D. 0.24m 相关知识点: 试题来源: 解析 A.0.12m 反馈 收藏
百度试题 结果1 题目频率为 500Hz 的波,其速度为 350m/s 位相差为 2 π /3 的两点间距为 () A. 0.165m B. 0.233m C. 0.356m D. 0.432m 相关知识点: 试题来源: 解析 B 反馈 收藏
一个倍频程频带中心频率为500Hz,则上限频率为( )赫兹。(取接近数值) A. 700 B. 710 C. 720 D. 730 你可能感兴趣的试题 单项选择题 舒巴坦属于青霉烷砜类药物 A、正确 B、错误 判断题 《秋风词》是典型的悲秋之作。 正确 错误 答案:正确
Answer to: A certain AM radio wave has a frequency of 550 kHz (kilo-hertz) and travels with a speed of 3.0\times10^8 m/s. What is the wavelength of...
A sound wave has frequency 5 kHz and wavelength 20cm. How long will it take to travel 2 km? View Solution A body is thrown up with a speed49m/s. It travels 5m in the last second of its upward journey. If the same body is thrown up with a velocity98m/s, how much distance (in...
频率理论是1886年由物理学家费尔提出的一种理论,认为内耳的基底膜是和镫骨按相同频率运动的。振动的数量与声音的原有频率相适应。但是由于人耳基底膜不能作每秒1000次以上的快速运动,故频率理论不能解释人为什么能听到1000。Hz以上的声音,故本题适宜答案为A。
百度试题 题目频率理论在解释听觉现象时,使用的声音频率范围是( )。 A. 500Hz以下 B. 1000~5000Hz C. 5000~10000Hz D. 10000Hz以上 相关知识点: 试题来源: 解析 A 涉及知识点:普通心理学 ~ C.5000~10000Hz D.10000Hz以上反馈 收藏