Question

In the Hallwachs and Lenard experiment on the photoelectric effect, a beam of monochromatic light was...

In the Hallwachs and Lenard experiment on the photoelectric effect, a beam of monochromatic light was shined on a cathode. Which factor has the least effect on whether the cathode releases electrons?

the intensity of the monochromatic light

the electric potential between the cathode and anode

the material on the surface of the cathode

the frequency of the monochromatic light
Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
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
Similar Questions
A) Within a photoelectric effect experiment, light shines on the surface of a metal plate and...
A) Within a photoelectric effect experiment, light shines on the surface of a metal plate and the stopping voltage is measured. a) If the light intensity is decreased, what happens to the stopping voltage? decreases increases     stays the same not enough information b) If the light intensity is decreased, what happens to the number of electrons emitted? decreases increases     stays the same not enough information c) If the light wavelength is decreased, what happens to the KE of the emitted...
The “electric eyes” used to open doors automatically are based on the photoelectric effect. The metal...
The “electric eyes” used to open doors automatically are based on the photoelectric effect. The metal surface inside the “eye” [an evacuated glass chamber containing the surface (cathode) and a photocurrent collector (anode)] continuously provides current until the light beam that actuates it is interrupted. a. What is the maximum kinetic energy of photoelectrons produced by a mercury vapor lamp which emits 436 nm violet light causing the actuation of an electric eye of work function 2.1 eV? b. What...
An investigator is measuring the current in a photoelectric effect experiment. The cathode is illuminated by...
An investigator is measuring the current in a photoelectric effect experiment. The cathode is illuminated by light of a single wavelength. What happens to the current if the wavelength is reduced by a factor of two while keeping the intensity constant? Explain it using a diagram, the equation used in symbol form, and then substitute the values in
In the photoelectric effect, the light you are using causes electrons to be emitted from a...
In the photoelectric effect, the light you are using causes electrons to be emitted from a metal surface. Classify the following as true or false, regarding adjustments to the light. 1.If you increase the intensity of the light, you will increase the kinetic energies of the emitted electrons. 2.If you increase the frequency of the light, you will increase the kinetic energies of the emitted electrons. 3. If you increase the intensity of the light, you will increase the number...
The photoelectric effect describes electrons being ejected from a metal. Assume that a wavelength of light...
The photoelectric effect describes electrons being ejected from a metal. Assume that a wavelength of light has caused electrons to be emitted from a metal. a. What would be observed if only the intensity of the light is increased? b. What would be observed if only the frequency of the light was increased?
A current is detected in a photoelectric-effect experiment when the cathode is illuminated with green light....
A current is detected in a photoelectric-effect experiment when the cathode is illuminated with green light. Part A Will a current necessarily be detected if the cathode is illuminated with blue light? Select the correct answer and explanation. (1)Photons of blue light have less energy than photons of green light. Therefore, if there is a current in a photoelectric-effect apparatus with green light, then there could be no current with blue light. (2)Photons of blue light have less energy than...
Potassium and gold cathodes are used in a photoelectric-effect experiment. For each cathode, find: 1. The...
Potassium and gold cathodes are used in a photoelectric-effect experiment. For each cathode, find: 1. The threshold frequency 2. The threshold wavelength 3. The maximum electron ejection speed if the light has a wavelength of 210 nm 4. The stopping potential if the wavelength is 210 nm. Throughout this problem, be sure to use 6.63 x 10^-34 J•s for Planck's constant.
a beam of photons strikes a photoelectric cell with a work function of 2.5 eV, causing...
a beam of photons strikes a photoelectric cell with a work function of 2.5 eV, causing electrons to be emitted. The electrons hit a cathode which completes a circuit with the cell. The total resistance of the circuit is 4 ohm and an anmeter measures a current of 5A. what is the energy of the photons striking the photoelectric cell? if light with a frequency of 1*10^15 hz falls on the sodium in the previous problem, what is the maximum...
Light of wavelength 235 nm is incident on Magnesium in a photoelectric effect experiment. The work...
Light of wavelength 235 nm is incident on Magnesium in a photoelectric effect experiment. The work function of Magnesium is 3.68 eV. (a) What is the maximum kinetic energy of the emitted electrons, in eV? (b)What is the maximum velocity of the emitted electrons, in m/s? (c) What is the stopping potential, in Volts, that results in no collected photoelectrons? (d) Light of wavelength 235 nm is now incident on lead (work function 5.40 eV). What is the maximum kinetic...
-A light beam going north passes a stationary observer. A second observer passes the first observer...
-A light beam going north passes a stationary observer. A second observer passes the first observer at a speed of 0.6 c, going south. According to the second observer, the speed of the beam seen by the first observer is 1-0.4 c 2-1.6 c 3-c 4-0.6 c 5-0.8 c -When light of wavelength λ illuminates the surface of Metal 1, the stopping voltage is V. In terms of V, what will be the stopping voltage if the same wavelength is...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT