What is the frequency of the photons emitted by hydrogen atoms when they undergo transition from n = 4 to n = 3 ? What is the frequency of light (in Hz) of a photon emitted when an electron in a hydrogen atom undergoes a transition from the n = 4 energy...
What is frequency? Electrical Alternating current (ac) frequency is the number of cycles per second in an ac sine wave. Frequency is the rate at which current changes direction per second. It is measured in hertz (Hz), an international unit of measure where 1 hertz is equal to 1 cycle ...
What is the frequency of a sound wave with a period of 0.02 seconds? A. 20 Hz B. 50 Hz C. 100 Hz D. 200 Hz 相关知识点: 试题来源: 解析 B。频率等于周期的倒数,周期为 0.02 秒,频率 = 1/0.02 = 50Hz,所以选择 B 选项。反馈 收藏 ...
The unit for frequency is the hertz (Hz). What is the best definition of frequency? The frequency of waves is how many waves pass a given point in a specific unit of time. Frequency is directly proportional to the energy. The higher the frequency, the higher the energy. What is meant ...
Log In Sign Up Subjects Science Physics Photon What is the frequency (in Hz) of a photon of light with a wavelength of 640 nm?Question:What is the frequency (in Hz) of a photon of light with a wavelength of 640 nm?Frequency of a Photon:...
In science and technology, frequency is measured in Hz (hertz).2. Concerning a CPU (Central Processing Unit), frequency refers to the processor's operational clock cycles per second. The frequency of most modern CPUs is measured in GHz, or billions of cycles per second....
Hertz, in short Hz, is the basic unit of frequency, to commemorate the discovery of electromagnetic waves by the German physicist Heinrich Rudolf Hertz. In 1888, German physicist Heinrich Rudolf Hertz (Feb-22, 1857 to Jan-1, 1894), the first person confirmed the existence of radio waves, ...
Frequency In physics, the number of crests of a wave that pass a point in a given time. The frequency of the sound wave determines its pitch. 2 Proportion A part, share, or number considered in comparative relation to a whole The proportion of greenhouse gases in the atmosphere is rising...
What is a screen frequency is a legitimate question, but there are different types! Alternatively referred to as frame rate, horizontal sampling rate, vertical frequency, or frequency. The update rate is a CRT / TFT / LED / LCD monitor, the measurement is in Hz, which indicates how often ...
Hence, the frequency of the pendulum is 0.25 cycles. The writing of the units cycles usually takes place as “Hertz”, and its symbol is Hz. Therefore, the frequency of this particular pendulum is 0.25 Hz. Q2. The tachometer in a car carries out the measurement of the revolutions per min...