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