Question

Красная граница фотоэффекта для материала катода 3*1014 Гц. Чему равна работа выхода для этого материала?

Answer 1

 hv=A+Eк
граница  - Ек->0
A=h*v
v=3*10^14Гц
h - постоянная планка

Answer 2

Red Limit of the Photoelectric Effect for Cathode Material at 3*10^14 Hz

The red limit of the photoelectric effect refers to the minimum frequency of light required to eject electrons from a material. In this case, the red limit for the cathode material is given as 3*10^14 Hz.

Work Function for this Material

The work function, denoted by the symbol Φ, represents the minimum energy required to remove an electron from the surface of a material. It is directly related to the red limit of the photoelectric effect through the equation:

E = hf = Φ + KE

Where: - E is the energy of the incident photon - h is Planck's constant - f is the frequency of the incident photon - Φ is the work function - KE is the kinetic energy of the emitted electron

By rearranging the equation, we can solve for the work function Φ:

Φ = hf - KE

Calculation of the Work Function

Given the red limit frequency of 3*10^14 Hz, we can use the above equation to calculate the work function for this material. However, the kinetic energy of the emitted electron is not provided, so we cannot calculate the exact work function without this information.

Therefore, without the value of the kinetic energy of the emitted electron, it is not possible to determine the exact work function for the given material based solely on the provided information.

If you have the value of the kinetic energy of the emitted electron, please provide it so that we can calculate the work function accordingly.