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What is the wavelength of an electron moving with a velocity of 2.5 x 108 cm s1?
Wiki User
∙ 16y ago
Wavelength = Plancks constant / (Mass x Velocity)
Wiki User
∙ 16y ago
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What is the wavelength of a photon with an energy of 3.26 10 19 J?
The wavelength is 610 nm.
What is the energy in J of a photon with a wavelength of 495 nm?
E = hc/(wavelength) (Sorry but there ain't no button for lambda on the keyboard) h = 6.63 x 10-34, c = 3 x 108 E = (6.63 x 10-34 x 3 x 108) / 495 x 10-9 E = 4.0181818... x 10-19 NB if the wavelength is in nanometers, expect the final order of magnitude to be 10-19 or thereabout.
How does the wavelength of light compare to frequency of light?
Ultraviolet light occurs just above the range of electromagnetc radiation that is detectable by the human eye and has a shorter wavelength than violet. This means it has a higher frequency since all light waves are presumed to travell at the same speed, whether visible to us or not. To explain this in simple terms, if two trains are travelling at the same speed, and one has short cars and the other has long cars, the one with the short cars will pass by us more cars per minute than the one with the long cars. This is called frequency...the number of times something happens in a given time frame.
A ray in the emission spectrum has a wavelength of 3.10 x 1014 meters Given that the speed of light is 2.998 x 108 ms what is the frequency of the ray?
0.967 x 10^-6 HZ
A strong line in the spectrum of atomic mercury has a wavelength of 254 nm When mercury emits a photon of light at this wavelength the frequency of this light is?
254 nm= 254 x 10-9 m C=λv 3.00 x 108 m/s= 254 x 10-9 m (v) v= 1.18 x 1015 Hz
A wave has a frequency of 3 GHz and a speed of 3 x 108 ms what is the wavelength?
velocity.,i.e., speed = frequency X wavelength wavelength=velocity/frequency=(3X108m/s)/(3X109/s)=0.1m
What speed radio wave with frequency 1000Hz?
All radio waves travel at light velocity ( 2.998 * 108 m / s)The relavant equation involved is:Velocity (fixed) = wavelength * frequencySo, with frequency given and velocity fixed, only wavelength remains to find.(2.998 * 108) = wavelength * 1000So:wavelength = (2.998 * 108) / 1000= 2.998 * 105 metres
What is the velocity of a radio wavelength of 3m?
If u meant radio wave, then velocity of all electromagnetic wave is 3*108 m/s. Hence velocity of radio wave will be the same ,as it as an em wave, irrespective of its wavelength.
What is the frequency of an electromagnetic wave that has a wavelength of 300000 kilometers?
The formula related to frequency and wavelength is Wavelength = 300000000 / Frequency (f) Wavelength = 300000000 / 30000000000 Wavelength = 1/100 Wavelength = 0.01 meter OR Wavelength = 10 milimeter
What is the frequency of light having a wavelength of 447 nm?
Wavelength = Velocity / FrequencyTherefore:Frequency = Velocity / WavelengthVelocity = c, the speed of light, which is 299,792,458m/s.We know the wavelength is 413nm, which is 4.13*10-7m, so our equation is:f = (3.00 * 108) / (4.13 * 10-7) = 7.259 * 1014Hz
What is the wavelength of 92.9?
C=λv or λ=C/vFrequency = Velocity divided by wavelengthC is the velocity, which is the speed of light ~3.00 × 108 m/secλ is the wavelengthv is the frequencyYou take the speed (C) and divide it by the frequency (v) to get the wavelength (λ).Using the value 3.00 × 108 m/sec will calculate wavelengths for electromagnetic radiation. For speed of sound calculations, C will be about 343 m/sec.Therefore, the wavelength of 92.9 mHz= 10.417028369040592 feet
What is the wavelength of an electromagnetic wave that has a frequency of 3 MHz?
An electromagnetic wave has a velocity "c", the universal wave equation velocity = wavelength * frequencythe wavelength then equal c / frequencythen the wavelength of that wave is : Lambda= c / Nu= 299792458 / 3*1000000 = 99.930819333333333333333333333333 meters ~ 100 meters(Lambda is the wavelength, Nu is the frequency).====================================To summarize:Wavelength = (speed) / (frequency) = (3 x 108) / (3 x 106) = 102 = 100 meters, in vacuum
How do the frequency of a wave change when the wavelength decreases?
When the wavelength of a wave increases, the frequency decreases. When the wavelength decreases, the frequency decreases. These two values are said to be inversely proportional. Here is the equation for velocity of a wave: v = f λ where v = velocity (usually 3.0 x 108 meters/second2, which is the speed of light) f = frequency (usually in Hertz or 1/seconds) λ = wavelength (usually in nm or nanometers)
What is the equation for wavelength?
The formula for wavelength λ = v/f where v is the velocity f is the frequency of the wave and λ (lambda) is the symbol for wavelength Wavelength formulaC=λf or λ=C/f
A wave has a wavelength of 2.85 meters and a velocity of 3.00 10 8 power meters per second What is the frequency of this wave?
a sound wave has a frequency of 110 hz and a wavelength of 3.0m. what is the speed of the wave
What is the frequency of a electromagnetic wave with a wave length of 12800 KM?
Frequency = velocity of the wave / wavelength Frequency = 3 x 108 / 1.28 x 107 So v = 23.4375 Hz
If the frequency is 2 cycles per second then what is the wavelength?
It is not possible to answer this question numerically because the velocity of the wave also needs to be known. The three following equations are equivalent. velocity = wavelength x frequency wavelength = velocity / frequency frequency = velocity / wavelength The correct unit for frequency is Hz (Hertz) although this is the same as the old "cycles per second". Wavelength is measured in metres and velocity in metres/second.
