解析 The frequency of a progressive wave is the number of cycles of the wave that pass a fixed point per unit time. 频率是指单位时间内波形重复的次数。对于进行波来说,频率指的是单位时间内波形经过某一点的次数。 简而言之,频率代表了波的振动速度,它决定了波的音调或颜色。
相关知识点: 试题来源: 解析 在波的上下文中,位移是指介质中的粒子从其平衡位置移动的距离。 在波的传播过程中,介质中的粒子会围绕其平衡位置振动。位移指的是粒子在某一时刻偏离其平衡位置的距离,可以是正值或负值,取决于粒子相对于平衡位置的位置。反馈 收藏 ...
That iswhat is meant by" failure is the mother of success " " 失败是成功之母 " 就是这个意思. 互联网 Hobson :What is meant bythe term Clearing House Association? 霍布森: 票据交换是什么意思? 互联网 What is meant bya longitudinal and transverse weld?
In order to understand, however imperfectly, what is meant by "face", we must take (1) of the fact that, as a race, the Chinese have a strongly (2) instinct. The theatre may almost be said to be the only national amusement, and the Chinese have for theatricals a...
(a) Explain the term 'pitch' of a sound. On what factor does the 'pitch' of a sound depend? (b) Draw labelled diagrams to represent sound of (a) low pitch, and (b) high pitch, of the same loudness. View Solution View Solution ...
4 (a) State what is meant by the term polarisation when applied to a wave.[1](b)Explain why only transverse waves can be polarised.[2](c)Some films released have enabled viewing in three dimensions (3D). This can be done using two superimposed polarised images on the screen. One of ...
10 (a)(i) State what is meant by the acoustic impedance of a medium...1(ii) Dat a for some medi a are given in Fig. 10.1.medium speed of ultrasound acoustic impedance/ms-1/ kg m-2 s-1air3304.3 ×102gel15001.5 ×106soft tissue16001.6 ×106bone41007.0 ×106Fig.10.1Use dat a fro...
aIt is necessary to define what is meant by diagnosis or troubleshooting because the termsare used differently in the literature. Sometimes diagnosis refers only to the process from identification of the symptom to the determinationof the fault. In other cases, especially when one speaks about ...
Is it impossible to polarize a longitudinal wave? Explain. Why there is no intensity distribution due to single wave? Define a ray of light. What is the superposition principle? What is interference? What is meant by nodes and antinodes?
127K Obstacles such as limited resources and access can prevent researchers from getting information from every part of a target population. Because of these issues, they must define a sampling frame. Learn to define a sampling frame and understand when and how it is used. Related...