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Why does the peak emission wavelength increase with temperature?
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∙ 11y ago
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What is peak to peak?
Peak to Peak is the most positive peak to the negative peak value. Or find any peak value and multiply by 2.
What is the effective value of 200 volts peak-to-peak?
200 volts peak-to-peak is 100 volts peak, which is 70.7 volts rms (standing for root-mean-square) also called "effective". This 70.7 volts is the DC voltage with the same heating power as the peak-to-peak. The relationship is: rms (aka RMS) equals peak-to-peak divided by 2, then divided again by square-root of 2 (1.414). The division by 2 gets us from peak-to-peak to just peak. The next division takes us to rms. If you get an AC voltrage with no description, for exmple 120 volts AC, it is RMS (effective). The USA AC standard supply voltage is 120 (also called 117) volts RMS. The USA peak is 117 x 1.414 (square root of 2) = 165 volts peak, = 330 volts peak-to-peak.
Are peak-to-peak and rms voltage measurements the same?
No, the peak-to-peak voltage is 2sqrt(2) times as much as the rms for a pure sine-wave.
How to calculate the peak-to-peak value of a signal?
A: AC or our line voltage is sinusoidal in nature it goes up to a positive peak returns to zero and proceed to the negative peak. 120V AC is actually swinging from peak to peak. It is 120 volts but the peak is the 120 v times 1.41 or 169.2 volts and since it also go negative then the peak to peak 120 volts times 2.82 or 338.40 volts or twice the peak voltage
What is the peak to peak voltage for the AC line voltage in normal outlets of your house?
Peak - neutral for 120 volts RMS is 169 volts, or 120 * sqrt(2) Peak to peak will be 2 x this value, or 339 volts.
Knowing the peak emission wavelength of a black body allows you to determine its?
temperature
What is important about the peak wavelength of a thermal radiation spectrum?
The peak wavelength, is connected to the temperature of the objects. we have short peak wavelength when the temperature is high.
What is the relationship between the color of the star and temperature of a star?
The color of a star is related with the wavelength of the light observed. Wien's Law states that: Peak Wavelength x Surface Temperature = 2.898x10-3 Peak Wavelength is the wavelength of the highest intensity light coming from a star.
What is the peak wavelength of radiation?
This question has a real subtlety in it. The simplest answer is given by Wein's Law, sometimes called Wein's Displacement Law: The peak of the spectrum for any "blackbody" (this works approximately for stars and people, basically any opaque object). Wavelength of peak emission = (Stefan's constant, which you can look up) x 0.0029meter / temperature in Kelvins. According to this formula, the peak is in the green part of the spectrum. But a lot of light is given off across the visual part of the spectrum so it looks whitish to me. Here's the subtlety that few people realize. This all works only when you plot the spectrum as the emission per unit wavelength. You can also plot the emission per unit frequency. Then the peak is at a different location!
If a certain star has a peak wavelength of 700NM then its surface temperature is about?
4200K
Is the color of star an effect of its temperature?
Yes. The apparent colour of a star is related to the peak wavelength of the light it emits. According to Wien's displacement law (look it up in Wikipedia) the peak wavelength is inversely proportional to the temperature. The higher the temperature, the shorter the peak wavelength. Wavelength decreases as one moves from red to blue in the visible spectrum, so a red star is cooler than a blue one.
If the star Antares has a peak wavelength of 700NM then its surface temperature is about?
4200 K
What is the peak to peak distance of a wave?
The wavelength.
What is the peak to peak distance of wave?
The wavelength.
Scientists determine the composition and temperature of stars?
To determine the chemical composition of stars, scientists look at what's called the emission spectrum of the stars, which can be obtained from the light coming from the stars. Thin lines are observed in different parts of the spectrum, which correspond to different chemicals. In other words, the lines are like fingerprints of chemicals. By looking at these fingerprints, one can determine what type of chemicals are present in the star. To determine the surface temperature of stars, we use the Wien's Law. It states that: Peak wavelength x Surface Temperature = 2.898x10-3 Peak wavelength can be determined by looking at the light coming from the star in question. It is the wavelength with the highest intensity.
How do you label a wavelength?
you label a wavelength with amplitude, wavelength, through, and peak.
Which type of electromagnetic wave will be emitted by a cooler object?
The type of electromagnetic waves that will be emitted by a cooler object are waves with long wavelengths. The wavelength of peak emission is determined by Wien's Law.
