What is the work function of the cathode

Reference no: EM13716186

Solve the all parts of given problem:

Problem: The maximum kinetic energy of photoelectrons is 2.80eV . When the wavelength of the light is increased by 50%, the maximum energy decreases to 1.50eV.

Part I: What is the work function of the cathode?

Part II: What is the initial wavelength?

Please show all work and steps to determine the work function of the cathode and express your answer with the appropriate units.

Reference no: EM13716186

Questions Cloud

What is the force exerted by the current loop on the wire : A long straight wire carries a current I1 = 3.8 A and is a distance h = 17.5 cm from a rectangular current loop that carries a current I2 = 1.8 A. What is the force exerted by the current loop on the wire

Estimate the magnitude of the force exerted by wire : Two long straight wires are parallel and carry currents of I1 = 6.20 A and I2 = 4.30 A in opposite directions. Determine the magnitude of the force exerted by one wire on the other

What are the differences between the nshs drafted : What are the differences between the NSHS drafted in 2002 and the NSHS drafted in 2007? Compare and contrast the two.What are the major provisions within the Quadrennial Homeland Security Review (QHSR)?

Find what the spring constant : If the ramp makes an angle of 45.0Â° with respect to the horizontal, and the spring originally was compressed by 0.18 m, find the spring constant

What is the work function of the cathode : The maximum kinetic energy of photoelectrons is 2.80eV . When the wavelength of the light is increased by 50%, the maximum energy decreases to 1.50eV. What is the work function of the cathode

Determine what the current in the bulb : A light bulb has a resistance of 263. It is connected to a standard wall socket (120 V, 60.0 Hz). Determine the current in the bulb

Use headnotes to highlight the issues : Open a blank Microsoft® Word® document which should be labeled 'Torts 612 Assignment # 11' followed by your last name and your student number. Please write your answer to this essay question as if it were your final. You should use the IRAC for..

How many photons are emitted in each pulse : A ruby laser emits an intense pulse of light that lasts a mere 30.0ns. The light has a wavelength of 690 nm, and each pulse has energy of 700mJ. How many photons are emitted in each pulse

What was its speed at half this distance : An accelerating car starting from rest reaches a certain distance with the speed 20 m/s. What was its speed at half this distance

User Account

All Pages