Two light sources are used in a photoelectric experiment to determine the work function for a...

Question

Question

Two light sources are used in a photoelectric experiment to determine the work function for a...

Two light sources are used in a photoelectric experiment to determine the work function for a particular metal surface. When green light from a mercury lamp (λ = 546.1 nm) is used, a stopping potential of 0.898 V reduces the photocurrent to zero.

(a) Based on this measurement, what is the work function for this metal?
eV

(b) What stopping potential would be observed when using light from a red lamp (λ = 640.0 nm)?
V

science physics

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

Add a comment

Answer 2

Similar Homework Help Questions

Two light sources are used in a photoelectric experiment to determine the work function for a...

Two light sources are used in a photoelectric experiment to determine the work function for a particular metal surface. When green light from a mercury lamp (λ = 546.1 nm) is used, a stopping potential of 0.914 V reduces the photocurrent to zero. (a) Based on this measurement, what is the work function for this metal? eV (b) What stopping potential would be observed when using light from a red lamp (λ = 663.0 nm)? V
Two light sources are used in a photoelectric experiment to determine the work function for a...

Two light sources are used in a photoelectric experiment to determine the work function for a particular metal surface. When green light from a mercury lamp (A 546.1 nm) is used, a stopping potential of 0.802 V reduces the photocurrent to zero. (a) Based on this measurement, what is the work function for this metal? eV (b) What stopping potential would be observed when using light from a red lamp (A 686.0 nm)? V
Two light sources are used in a photoelectric experiment to determine the work function for a...

Two light sources are used in a photoelectric experiment to determine the work function for a particular metal surface. When green light from a mercury lamp (λ = 546.1 nm) is used, a stopping potential of 0.810 V reduces the photocurrent to zero. (a) Based on this measurement, what is the work function for this metal? ___eV (b) What stopping potential would be observed when using light from a red lamp (λ = 675.0 nm)? ___V

Physics help! Thanks in advance! Two light sources are used in a photoelectric experiment to determine...

Physics help! Thanks in advance! Two light sources are used in a photoelectric experiment to determine the work function for a particular metal surface. When green light from a mercury lamp (lambda = 546.1 nm) is used, a stopping potential of 0.686 V reduces the photocurrent to zero. (a) Based on this measurement, what is the work function for this metal? eV (b) What stopping potential would be observed when using light from a red lamp (lambda = 630.0 nm)?...
This is my fourth time posting this problem, so if you are not 100% sure that...

This is my fourth time posting this problem, so if you are not 100% sure that you know how to solve it please leave it alone. Exercise: Two light sources are used in a photoelectric experiment to determine the work function for a particular metal surface. When green light from a mercury lamp (λ = 546.1 nm) is used, a stopping potential of 0.894 V reduces the photocurrent to zero. (a) Based on this measurement, what is the work function...
A light source is used in a photoelectric effect experiment to determine the work function of...

A light source is used in a photoelectric effect experiment to determine the work function of a particular metal. When green light from a mercury lamp (546.1nm) is used, a retarding potential of 0.88V reduces the photocurrent to zero. Based on this measurement, what is the work function for this metal? (Units: eV) Note: h = 6.626 x 10-34 Js = 4.136 x 10-15 eVs

in a photoelectric experiment it is found that a stopping potential of 1.00 v is needed...

in a photoelectric experiment it is found that a stopping potential of 1.00 v is needed to stop all the electrons when incident light of wavelength 294 nm is used and 2.7 V is needed for light of wavelength 207 nm. from these data determine plank's constant and the work function of thr metal.
1) Light of wavelength 310nm is shined on a metal with work function = 1 eV....

1) Light of wavelength 310nm is shined on a metal with work function = 1 eV. What will be the maximum kinetic energy of the emitted electrons? 2) Light is shined on a metal with work function 2.0 eV, and electrons are emitted creating a photocurrent. When a decelerating voltage of magnitude 1.0 V is applied, the current goes to zero (i.e. the magnitude of the stopping voltage is 1V). What is the wavelength (in nm) of the incoming light?...
In a photoelectric effect experiment in which monochromatic light of wave- length, X, falls on a...

In a photoelectric effect experiment in which monochromatic light of wave- length, X, falls on a potassium surface, it is found the stopping potential is 1.91 V for λ-3000 and 0.88 V for λ-: 4000 Á. For these data, calcu- late: a) Planck's constant using e-1.69 × 10-19 C, b) the work function. W, for potassium, and c) the threshold frequency, vT for potassium.

Julie discovers the lamp on the photoelectric apparatus has burned out. After freaking out momentarily, she realizes she...

Julie discovers the lamp on the photoelectric apparatus has burned out. After freaking out momentarily, she realizes she can use an electron in an infinite square well of width 0.500 nm as the light source. Using a filter to ensure only the lowest energy photons reach the cathode she determines the stopping potential is 1.84 V. What is the work function of the metal being used in the experiment?

Two light sources are used in a photoelectric experiment to determine the work function for a...

Homework Answers