# Questions tagged [frequency]

Frequency is the rate of repetitive aspect in the amplitude over a given dimension.

1,170 questions
Filter by
Sorted by
Tagged with
38 views

### Is light a single wave when we refer to frequency?

When we say that light oscillates $n$ times (frequency) in a second do we mean that the same electromagnetic field travelling through space oscillates $n$ time's? As i have seen diagrams suggesting ...
30 views

### Frequency of superimposed wave

If two waves with frequency $f_1$ and $f_2$($f_1≠f_2$) are added together to form a superimposed wave then what will be the frequency of the resultant wave if - the velocity of the two wave is same ...
27 views

### When we shrink a box containing a gas does the increased fraquency of molecules impacts on the box cause the rise of its temperature?

When we shrink a box containing a gas does the increased fraquency of molecules impacts on the box cause the rise of its temperature?I assume the kinetic energy of the molecules shouldn't change ...
21 views

### 50 mhz signal pulsed at 4 khz [closed]

a 50 mhz signal pulsed at 4 khz can be received by a 20cm antenna. That is, since they are pulsed at 4 khz, the antenna receives them ??
79 views

### Doppler Effect formulas for stationary observer and source [duplicate]

I am a high school student and recently learnt about the doppler effect. My teacher showed me two different formulas for the doppler effect with moving observer and moving source. Why are there ...
35 views

### The same frequency sounds sound as different sounds

Imagine, the piano is sounded $500 \mathrm{Hz}$ sound and the same frequency is sounded in a violin. We always observe their sounds are different even though they're harmonic. I think there must be ...
71 views

### What is the wavelength of white light? [closed]

Does white light have a wavelength, and I know that the sun emits white light, but the atmosphere makes it refract to make it appear yellow to us. Do all the stars in the universe emit white light?
62 views

### Can the wavelength of light change after it is emitted in a vacuum? [closed]

Can the wavelength of light change after it is emitted in a vacuum? As the picture below describes, is it possible for light to change wavelengths after being emitted in a vacuum (no medium).
27 views

### Can a X-ray photon increase its frequency after scattering of a nucleus?

Can a X-ray photon increase its frequency after scattering of a nucleus? Let say nucleons are oscilating inside a nucleus due to interaction between residual SNF and Coloumb force... Can this ...
59 views

### Spring-mass system in an elevator

I have a conceptual doubt. If we have a mass m hanging from an ideal spring, attached to the ceiling of an elevator... what happens to the period if the elevator starts going up or down with constant ...
34 views

### Why refractive index of same material is different for different monochromatic lights?

Yeah I know that refractive index is different for different monohromatic lights due to the change in velocity of light. And as frequency doesn't changes and only wavelength changes while travelling ...
22 views

### Stationary Nodes with Waves containing a "Fourier series" of frequencies

For a standing wave (i.e. a wave pattern created from two oppositely-traveling waves with the same amplitude and frequency), stationary nodes are created at certain positions along the wave with ...
76 views

### How to find frequency response of a damped spring mass system using the Laplace transform

I would like to find the frequency response of a spring mass system of multiple degrees of freedom by using the Laplace transform. I think I know how to do this with one mass oscillating, however I ...
74 views

### Planck's quantum theory

Recently came across Planck's theory, $E = h\nu$. It means that at any frequency, there is given energy. But I also saw that, $E$ can be $0, h\nu, 2h\nu, 3h\nu,...$. How is it possible that energy can ...
24 views

### What is the relation between the frequency vector and the Nyquist frequency?

When trying to comprehend the concept of Nyquist frequency in FFT, I came across the following definition for half of the frequency range: $$f = -f_{n}/2:df:f_{n}/2-1;$$ where $f$ represents the ...
53 views

### Can a metal sheet roof be vibrated at audio frequencies?

So I'm renting a cheap place for now due to certain circumstances. Problem is outside noise is excessive because there is no ceiling and the roof is only a metal sheet... Lately I play white noise to ...
27 views

### Upper limit of energy carried by one photon [duplicate]

energy carried by one photon, $E = hυ$ where $υ$ is frequency and $h =$ planck constant. Is there any upper limit to how much energy one photon can carry? or any upper limit of frequency?
40 views