alright, with the given values you have, plug the numbers into this equation:
frequency = speed/ wavelength
in this case
speed is the speed of light 'c' which is 3.0 x 10 ^8 m/s
so wavelength = c/f
= 300 000 000 (m/s)/ 7.421014Hz
= 40425742.36 m
= 4.0 x 10^7 m
there you go
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For your information, purple is not a real colour. It is a combination of red and blue.
very nice answer.
No, red is the longest wavelength of visible light, with the lowest frequency and the least energy. Violet light has the shortest wavelenght, with the highest frequency and the most energy (of visible 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.
Frequency. f=c/l Where, f=Frequency, l=Wavelength and c=Velocity of light in free space.
There are several ways to calculate the frequency of light emitted or absorbed by different chemicals, and they depend on what you already know. For example, if you know the energy of the particle, then you can calculate frequency from E = planck's constant x frequency and solve for frequency. If you happen to know the wavelength, then you can use C = wavelength x frequency and solve for frequency (where C = speed of light).
Each colour of visible light has a different frequency. Red has the lowest frequency, meaning it has a long wavelength. Purple has the highest frequency and has a very short wavelength. The order is: red, orange, yellow, green, blue, purple. I hope this helps you!
Its wavelength (or frequency).
wavelength = c/frequency of light where c is the speed of light.
wavelength = speed of light/frequency so we rearrange frequency = speed of light/wavelength Hopefully you can figure it out from here...
Wavelength times frequency is the speed. To know the wavelength, you have to divide the speed by the frequency of the light.
Light with a lower frequency will have a longer wavelength. Frequency and wavelength are inversely proportional to each other (i.e. as one increases, the other decreases and vice-a-versa). The product of frequency and wavelength is the speed of light.
very nice answer.
Wavelength times frequency is the speed. To know the wavelength, you have to divide the speed by the frequency of the light.
To find (wavelength): Divide (speed) by (frequency). To find (frequency): Divide (speed) by (wavelength).
the speed of light equals the frequency multiplied by the wavelength.
Inversely frequency = speed of light / wavelength
Wavelength, or alternatively its frequency.