Wavelength Sumamtive Flashcards
What is Roygbiv range?
R=Lowest energy, lowest frequency, longest wavelength (LLL)
V=Highest energy, highest frequency, shortest wavelength. (HHS)
What does h mean?
h is a constant which is 6.626 X 10-34 J·s,
What does c mean?
C is the constant for speed of light (3 X 10^8)
What does E stand for?
E is the energy of the light in Joules (J),
How do you calculate the energy of something?
Energy= h, so you would use the equation: (6.626E-34 X V (frequency)
What does v mean?
v is the frequency of the light in s-1 or waves/s (also called Hertz (Hz).
What is λ?
λ is the wavelength
How many nanometers are in each meter?
There are 1 X109 nanometers in one meter.
What does the triangle look like to calculate the equations?
C on the top, wavelength lambda on bottom left, and v frequency on bottom right
How would you convert a unit of nanometers into meters?
multiplying the unit by (1 X 10^-9 m/1nm)
-Example: 210.0 nm x (1 X 10^-9) = 210.0 x 10^-9 m
What is frequency (provide definition):
the number of wave cycles passing a fixed reference point in one second. The unit for frequency is called the Hertz (its symbol is Hz).
-One Hertz is when one complete cycle passes the fixed point in one second,
What is wavelength (provide definition):
-Wavelength is defined as the distance between two successive crests of a wave. When studying light, the most common units used for wavelength are: meter, centimeter, nanometer, and Ångström.
What is the relationship between energy and wavelength?
The amount of energy is inversely proportional to the wavelength. The longer the wavelength, the lower its energy. The shorter the wavelength, the more energy
What is the relationship between frequency and wavelength?
The higher the frequency, the shorter the wavelength.
-The lower the frequency, the longer the wavelength
