HomeworkLib
Question

It requires a photon with a minimum energy of 4.41 ✕ 10-19 J to emit electrons...

It requires a photon with a minimum energy of 4.41 ✕ 10-19 J to emit electrons from sodium metal. (d) What is the maximum number of electrons that can be freed by a burst of light (λ = 389 nm) whose total energy is 1.20 µJ? (answer is not 2.72x10^12 or 2.721x10^12

science   chemistry   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

-G N= 2.33x10 Namberf ele.reng 2.33×le 3 lu

0 0
Add a comment
Know the answer?
Add Answer to:
It requires a photon with a minimum energy of 4.41 ✕ 10-19 J to emit electrons...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Molybdenum metal must absorb radiation with a minimum frequency of 1.09×10^15 s^−1 before it can emit...

    Molybdenum metal must absorb radiation with a minimum frequency of 1.09×10^15 s^−1 before it can emit an electron from its surface via the photoelectric effect. 1. What is the minimum energy needed to produce this effect? E = _______ J 2. What wavelength radiation will provide a photon of this energy? λ = ________ nm 3. If molybdenum is irradiated with light of wavelength of 120 nm, what is the maximum possible kinetic energy of the emitted electrons? E =...

  • Pieces of potassium (Φ = 3.68 × 10–19 J) and sodium (Φ = 4.41 × 10–19...

    Pieces of potassium (Φ = 3.68 × 10–19 J) and sodium (Φ = 4.41 × 10–19 J) metal are exposed to radiation of wavelength 265 nm. 1.) Which metal emits electrons with the greater velocity? 2.) What is the velocity of the electrons from potassium? 3.) What is the velocity of the electrons from sodium?

  • 1. Titanium metal requires a photon with a minimum energy of 6.94 x 10- J to...

    1. Titanium metal requires a photon with a minimum energy of 6.94 x 10- J to emit electrons. a. What is the minimum frequency of light necessary to emit electrons from titanium via the photoelectric effect? b. What is the wavelength of this light? c Is it possible to eject electrons from titanium metal using visible light? 2. Calculate the energies of an electron in the hydrogen atom when n=2 and when n=6. Calculate the wavelength of the radiation released...

  • The binding energy of electrons to a chromium metal surface is 7.21 × 10-19 J. What is the...

    The binding energy of electrons to a chromium metal surface is 7.21 × 10-19 J. What is the longest wavelength of light (in nm) that will eject electrons from chromiummetal? What frequency is required to give electrons with kinetic energy of 5.09E-19 J? What wavelength (in nm) is required to give electrons with kinetic energy of5.09E-19 J?

  • A metal surface has a minimum binding energy of 2.34x10-19 J/electron. An incident light of 345...

    A metal surface has a minimum binding energy of 2.34x10-19 J/electron. An incident light of 345 nm wavelength was directed onto the metal. Answer the following questions: a. What is the frequency of the incident light? b. How much energy per photon is projected onto the metal surface? c. How much energy per mole is projected onto the metal surface? d. What is the kinetic energy given to one electron that is released from the metal from the photoelectric effect?...

  • Find the wavelength (in nm) of a photon whose energy is 9.50 × 10-19 J.

    Find the wavelength (in nm) of a photon whose energy is 9.50 × 10-19 J.

  • hen a metal was exposed to photons at a frequency of 3.73x1015 s-1 electrons were emitted...

    hen a metal was exposed to photons at a frequency of 3.73x1015 s-1 electrons were emitted with a maximum kinetic energy of 3.10x 10-19 J. Calculate the work function of this metal. Number J (per photon What is the maximum number of electrons that could be ejected from this metal by a burst of photons (at some other frequency) with a total energy of 6.58x10-7 J? Number electron:s

  • The minimum frequency of light needed to eject electrons from a metal is called the threshold...

    The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, ν0. Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 3.32 × 1014 s–1. With what maximum kinetic energy will electrons be ejected when this metal is exposed to light with a wavelength of λ = 265 nm?

  • The minimum frequency of light needed to eject electrons from a metal is called the threshold...

    The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, ν0. Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 3.41 × 1014 s–1. With what maximum kinetic energy will electrons be ejected when this metal is exposed to light with a wavelength of λ = 265 nm?

  • Radiation of a certain wavelength causes electrons with a maximum kinetic energy of 0.95 eV to...

    Radiation of a certain wavelength causes electrons with a maximum kinetic energy of 0.95 eV to be ejected from a metal whose work function is 2.55 eV. What will be the maximum kinetic energy (in eV) with which this same radiation ejects electrons from another metal whose work function is 1.81 eV? In the Compton effect, an X-ray photon of wavelength 0.16 nm is incident on a stationary electron. Upon collision with the electron, the scattered X-ray photon continues to...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT