WebThe photoelectric effect has three important characteristics that cannot be explained by classical physics: (1) the absence of a lag time, (2) the independence of the kinetic energy of photoelectrons on the intensity of incident radiation, and (3) the presence of a cut-off frequency. Let’s examine each of these characteristics.

A. Depends both on intensity and frequency of the incident light. - V…

WebApr 12, 2024 · Graph connecting 'KE max ' and frequency: Maximum kinetic energy of photoelectrons versus frequency of incident radiation graph . Now, if we increase the reverse potential, the photocurrent gradually decreases and becomes zero at a particular reverse potential. This minimum applied reverse potential is called stopping potential V 0. … WebThe main graph shows the excitation density dependence (at constant excitation volume) of the final photocurrent amplitude (dashed curve) and of the build-up rate as given by the inverse of Eq. 12.16 for q = 0.1 to q = 0.9 in steps of 0.2. The slope of the middle build-up rate curve on the log-log plot is 0.5. ports on a surface book 2

Planck

Webresponse, which is the frequency at which the photodiode output decreases by 3dB. It is roughly approximated by: ( 3 ) There are three factors defining the response time of a photodiode: 1. t ... to light, and it is defined as the ratio of the photocurrent I P to the incident light power P at a given wavelength: ( 5 ) In other words, it is a ... WebAs the frequency goes from zero to higher values, the electron is lifted higher out of the hole, until finally at its threshold frequency it’s out. When there are no photons hitting it (frequency = 0 Hz), it is completely attached to the material. This is why they appear as negative values on the graph. Planck’s Constant WebeVo = mv2max The above equation indicates that the stopping potential depends upon the velocity of the fastest electron. The experiment is repeated with the incident radiation of same frequency, but of higher intensities I2 and I3. It is found from the graph, the saturation currents are proportional to the intensities of the radiation. optum marion in