What is the power rating of the light beam

Assignment Help Physics

Reference no: EM13647031

during a process described by the photoelectric effect, ultraviolet light can be used to charge a piece of metal.

(a) if such light is incident on a slab of conducting material and electrons are ejected with enough energy that they escape the surface of the metal how long before the metal has a net charge of + 1.50 nC if 1.00 X 10^6 electrons are ejected per second?

(b) if 1.3eV is needed to eject an electron from the surface what is the power rating of the light beam? (assume this process is 100% efficient).

Reference no: EM13647031

Questions Cloud

Explain the apparent vmax and km of the inhibitor : The kinetics of an enzyme is measured as a function of substrate concentration in the presence and absence of 2 mM inhibitor. The data from the experiments are shown below- What are the apparent Vmax and Km in the absence and in presence of the inh..

Determine what is how fast is the electron moving : An electron is released from rest at the negative plate of aparallel plate capacitor. How fast is the electron moving just before it reaches the positive plate

How to find dielectric constant of paper-teflon-rubber : How to find dielectric constant of paper , teflon ,rubber , silicon and concrete or any other 5 mediums and compare their values with standared values

What percentage of the incident intensity : Linear polarizers whose transmission axes make an angle of 45degree with each other The transmitted light intensity through both polarizers is what percentage of the incident intensity?

What is the power rating of the light beam : during a process described by the photoelectric effect, ultraviolet light can be used to charge a piece of metal. if 1.3eV is needed to eject an electron from the surface what is the power rating of the light beam

Determine the magnetic energy density in the field : The magnetic field inside a superconducting solenoid is5.10 T. The solenoid has an inner diameterof 6.20 cm and a length of 26.0 cm. Determine the magnetic energy density in the field.

Find the astronauts final speed : A 63kg astronaut is on a spacewalkwhen the tether line to the shuttle breaks. find the astronaut's final speed with respect tothe shuttle after the tank is thrown

Define the vmax and km of the enzyme catalyzed reaction : Estimate the Vmax and Km of the enzyme catalyzed reaction from both of the plots. Compare your results from the two methods and explain why they are slightly different.

Can she rely on the business judgment rule in situation : Would your answer be different if the real reason for compulsorily acquiring the shares from Silk was that she discovered operating a business in competition with Satin Co and was using information gained as a member to take away some of Satin's b..

User Account

All Pages