Post on 16-Dec-2015
Homework
Homework1. What is the frequency of green
light, which has a wavelength of 4.90 x 10-7 m?
Homework1. What is the frequency of green
light, which has a wavelength of 4.90 x 10-7 m?
c = λν
Homework1. What is the frequency of green
light, which has a wavelength of 4.90 x 10-7 m?
ν = c λ
Homework1. What is the frequency of green
light, which has a wavelength of 4.90 x 10-7 m?
ν = c 4.90 x 10-7 m
Homework1. What is the frequency of green
light, which has a wavelength of 4.90 x 10-7 m?
ν = 4.90 x 10-7 m
c
Homework1. What is the frequency of green
light, which has a wavelength of 4.90 x 10-7 m?
ν = 3.00 x 108 m/s 4.90 x 10-7 m
Homework1. What is the frequency of green
light, which has a wavelength of 4.90 x 10-7 m?
ν = 0.612 x 1015 s-1
Homework1. What is the frequency of green
light, which has a wavelength of 4.90 x 10-7 m?
ν = 6.12 x 1014 s-1
Homework1. What is the frequency of green
light, which has a wavelength of 4.90 x 10-7 m?
ν = 6.12 x 1014 Hz
Homework1. What is the frequency of green light, which has
a wavelength of 4.90 x 10-7 m?
ν = 6.12 x 1014 Hz
(1 Hz = 1 wave/second)
Homework2. An X-ray has a wavelength of
1.15 x 10-10 m. What is its frequency?
Homework2. An X-ray has a wavelength of
1.15 x 10-10 m. What is its frequency?
c = λν
Homework2. An X-ray has a wavelength of
1.15 x 10-10 m. What is its frequency?
ν = c λ
Homework2. An X-ray has a wavelength of
1.15 x 10-10 m. What is its frequency?
ν = c
1.15 x 10-10 m
Homework2. An X-ray has a wavelength of
1.15 x 10-10 m. What is its frequency?
ν = 3.00 x 108 m/s 1.15 x 10-10 m
Homework2. An X-ray has a wavelength of
1.15 x 10-10 m. What is its frequency?
ν = 2.61 x 1018 Hz
Homework3. What is the speed of an
electromagnetic wave that has a frequency of 7.8 x 106 Hz?
Homework3. What is the speed of an
electromagnetic wave that has a frequency of 7.8 x 106 Hz?
What is the speed of every electromagnetic wave?
Homework3. What is the speed of an
electromagnetic wave that has a frequency of 7.8 x 106 Hz?
C = 3.00 x 108 m/s, silly!
Homework4. A popular radio station broadcasts
with a frequency of 94.7 MHz. What is the wavelength of the broadcast? (1 MHz = 106 Hz)
c = λν
Homework4. A popular radio station broadcasts
with a frequency of 94.7 MHz. What is the wavelength of the broadcast? (1 MHz = 106 Hz)
λ = c ν
Homework4. A popular radio station broadcasts
with a frequency of 94.7 MHz. What is the wavelength of the broadcast? (1 MHz = 106 Hz)
λ = 3.00 x 108 m/s 94.7 MHz
Homework4. A popular radio station broadcasts
with a frequency of 94.7 MHz. What is the wavelength of the broadcast? (1 MHz = 106 Hz)
λ = 3.00 x 108 m/s 9.47 x 101 MHz
Homework4. A popular radio station broadcasts
with a frequency of 94.7 MHz. What is the wavelength of the broadcast? (1 MHz = 106 Hz)
λ = 3.00 x 108 m/s 9.47 x 107 Hz
Homework4. A popular radio station broadcasts
with a frequency of 94.7 MHz. What is the wavelength of the broadcast? (1 MHz = 106 Hz)
λ = 3.00 x 108 m/s 9.47 x 107 /s
Homework4. A popular radio station broadcasts
with a frequency of 94.7 MHz. What is the wavelength of the broadcast? (1 MHz = 106 Hz)
λ = 0.317 x 101 m
Homework4. A popular radio station broadcasts
with a frequency of 94.7 MHz. What is the wavelength of the broadcast? (1 MHz = 106 Hz)
λ = 3.17 x 100 m
Homework4. A popular radio station broadcasts
with a frequency of 94.7 MHz. What is the wavelength of the broadcast? (1 MHz = 106 Hz)
λ = 3.17 m