Questions tagged [frequency]
Frequency is the rate of repetitive aspect in the amplitude over a given dimension.
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Is it possible to expand the range and improve the quality of radio antenna using metal wire? [closed]
I have a speaker that include radio mode. When I switch to that mode it automatically scan for AM/FM radio signal. The audio quality is acceptable but my phone with an wired headphone did it better. I ...
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Cylindrical Glass mL water vs Frequency as a parabolic relationship
I understand why the frequency decreases as water is added, but I'm curious why in most experiments with cylindrical glasses a parabolic relationship typically governs this decrease. Are there ...
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Experimenting with Length of square Chladni plates (want to find velocity) [closed]
I am doing an IB EE physics experiment on "How does varying the side length of a square Chladni plate (0.1 m, 0.2 m, 0.3 m, 0.4 m and 0.5 m) impact the membrane’s resonant frequencies and ...
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Interference of two perpendicular standing waves on a string (Melde's Experiment)
Recently, I did Melde's Experiment in our lab. To say about the procedure, we had to find the frequency of a electrically vibrating tuning fork (connected to a mass through string over a pulley) as ...
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Which type of wave is the signals which travel in our nerves? Does it gets affected by an outside wave of same frequency (if matched)?
I’ve been reading about how signals travel in our nerves, and I understand that these signals are associated with electrical activity, but I’m unsure about the type of wave that carries these signals ...
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Which perspective is correct for moving source and observer?
A fire engine is moving at 50 m/s and sounding its horn of frequency 1500 Hz. A van in front of the fire engine is moving at 35 m/s in the same direction. What is the frequency that the driver of the ...
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How is a wave having travelled a longer path length be more in phase than another wave that travelled a shorter path length?
I was going through wave optics and I saw that the wave having travelled more path length was higher in phase as compared to the one having travelled a shorter path length. But isn't this weird? ...
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What is the exact nature of molecular vibration in solids and how does it relate to an object's natural fundamental resonant frequency?
This is my understanding and trail of thought on the topic in the title, and I would like to hear from others with a better understanding of the subject if I am on the right track or not. I will begin ...
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Planck's Law frequency vs wavelength [duplicate]
I was plotting planck's law today and attempted two different implementations. I took both from this table on Wikipedia. They are: In terms of wavelength: $$ B_{\lambda }(\lambda ,T)={\frac {2hc^{...
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Theorized tone of two engines combined
Assume 2 of the exact same engine types at the same rotational speed producing the same tone. Lets say the exhaust of each engine gets combined in a uniform length y pipe into one output. If these two ...
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Why aren't we bumping into objects outside of the visible range?
Apologies if this is too simple of a question for this site. My physics education stopped at the undergrad level. My 12 year old nephew asked me a question and I couldn't give him an answer. He asked, ...
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What is the general energy expresion for a massless particle?
The general energy-momentum relation for a massless particle is $E=cp$. I know that for a photon we have $E=hf$. Is this relation valid for any massless particle?
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Melde's Experiment Nodes and Frequency
Can someone please explain why in Melde's experiment, the number of nodes in the transverse wave is double the number of nodes formed in the longitudinal wave? And also the derivation of the frequency ...
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Why aren't brightness and loudness represented as spectra? [closed]
I'm curious why brightness (light intensity) and loudness (sound intensity) aren't usually described using a spectrum, which typically shows frequency ranges. Are these quantities measured differently ...
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If the current frequency is within the human hearing range, why can't we hear it?
If the current frequency (50 Hz or 60 Hz) falls within the human hearing range (20 Hz to 20 kHz), why can’t we hear it?
