1)The wavelength of one solar-wind electron that has a measured speed of 6.9 106 m/s is2)

4. The graph illustrates that I _ [:1 the maximum kinetic energy of the emitted photoelectrons is dependent upon the intensity of the incident light. Cl metals emit photoelectronsonly if the frequencyr of the incident light is greater than a certain specific value. l i [:1 at a given frequency of incident light, photoelectrons emitted from Metal C i have greater kinetic energy than photoelectrens emitted from Metal B- C] metals emit photoelectrens only if the intensity of the incident light is greater than a certain specific value