Question

What is the frequency f in Hz of light that has wavelength 157 nm? (Use 1...

What is the frequency f in Hz of light that has wavelength 157 nm? (Use

1 eV = 1.602 ✕ 10−19 J,

e = 1.602 ✕ 10−19 C,

c = 2.998 ✕ 108 m/s,

and

h = 6.626 ✕ 10−34 J · s = 4.136 ✕ 10−15 eV · s

as necessary.)

Homework Answers

Answer #1

Summary: To calculate the frequency I only need the speed of light and wavelength of the light. So I applied the formula that velocity of light is equal to multiplication of frequency and wavelength and got the value of frequency of light.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
An electron is confined in a harmonic oscillator potential well. What is the longest wavelength of...
An electron is confined in a harmonic oscillator potential well. What is the longest wavelength of light that the electron can absorb if the net force on the electron behaves as though it has a spring constant of 74 N/m? ( el = 9.11 × 10-31 kg, c = 3.00 × 108 m/s, 1 eV = 1.60 × 10-19 J,  = 1.055 × 10-34 J · s, h = 6.626 × 10-34 J · s) A. 220 nm B. 230 nm...
When ultraviolet light with a wavelength of 400 nm falls on a certain metal surface, the...
When ultraviolet light with a wavelength of 400 nm falls on a certain metal surface, the maximum kinetic energy of the emitted photoelectrons is 1.10 eV . What is the maximum kinetic energy K_0 of the photoelectrons when light of wavelength 340 nm falls on the same surface? Use h = 6.63×10−34 J⋅s for Planck's constant and c = 3.00×108 m/s for the speed of light and express your answer in electron volts. View Available Hint(s) K_0 =    eV
If the work function of a material is 2.20 eV, what frequency of incident light would...
If the work function of a material is 2.20 eV, what frequency of incident light would give a maximum kinetic energy of 0.25 eV to the photoelectrons ejected from the surface of this material? (1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ∙ s) 5.92 × 1014 Hz 3.53 × 1014 Hz 1.02 × 1014 Hz 2.50 × 1014 Hz 2.05 × 1014 Hz
What is the wavelength (in nm) of light having a frequency of 4.7 × 1013 Hz?...
What is the wavelength (in nm) of light having a frequency of 4.7 × 1013 Hz? What is the frequency (in Hz) of light having a wavelength of 6.87 × 102 nm? a) Wavelength of light × 10 nm (Enter your answer in scientific notation.) b) Frequency of light × 10 Hz (Enter your answer in scientific notation.)
Calculate the wavelength of the photon emitted when an electron makes a transition from n=5 to...
Calculate the wavelength of the photon emitted when an electron makes a transition from n=5 to n=3. You can make use of the following constants: h=6.626×10−34 J⋅s c=2.998×108 m/s 1 m=109 nm
Calculate the wavelength of the photon emitted when an electron makes a transition from n=5 to...
Calculate the wavelength of the photon emitted when an electron makes a transition from n=5 to n=3. You can make use of the following constants: h=6.626×10−34 J⋅s c=2.998×108 m/s 1 m=109 nm
When light of wavelength, 115 nm, impinges a photocathode that has a binding energy of 2.59...
When light of wavelength, 115 nm, impinges a photocathode that has a binding energy of 2.59 eV, electrons are ejected. What is the speed (in m/s) of the ejected electrons? h = 6.626 x 10–34J·s, c = 2.9979 x 108m/s, 1 eV = 1.602 x 10–19 J, NA= 6.022 x 1023mol–1, me = 9.11 x 10–31 kg, KE = ½ mv2. Report your answer to three significant figures. It might be easier to enter your answer in scientific notation. So,...
Calculate the wavelength λ and the frequency f of the photons that have an energy of...
Calculate the wavelength λ and the frequency f of the photons that have an energy of E photon = 3.32 × 10 − 20 J. Use c = 3.00 × 10 8 m/s for the speed of light in a vacuum. λ = _____m f_________ = Hz Calculate the wavelength and the frequency of the photons that have an energy of E photon = 753 MeV. λ =_______ m f________ = Hz Calculate the wavelength and the frequency of the...
what is the wavelength ( in nm) of light having a frequency of 4.2×10^13 Hz? what...
what is the wavelength ( in nm) of light having a frequency of 4.2×10^13 Hz? what is the frequency (in Hz) of light having a wavelength of 3.35×10^2 nm?
Calculate the wavelength ? and the frequency ? of the photons that have an energy of...
Calculate the wavelength ? and the frequency ? of the photons that have an energy of ?photon=1.12×10−18 J. Use ?=3.00×108 m/s for the speed of light in a vacuum. ?= m ?= Hz Calculate the wavelength and the frequency of the photons that have an energy of ?photon=881 MeV. ?= m ?= Hz Calculate the wavelength and the frequency of the photons that have an energy of ?photon=4.87 keV. ?= m ?= Hz Calculate the wavelength and the frequency of...