A Photocathode Has a Work Function of 2

question 4

Multiple Choice

A photocathode has a work function of 2.4 eV.The photocathode is illuminated with monochromatic radiation whose photon energy is 3.4 eV.The maximum kinetic energy of the photoelectrons produced is closest to:

• A)1.6 × 10^-19 J
• B)3.8 × 10^-19 J
• C)4.4 × 10^-19 J
• D)4.9 × 10^-19 J
• E)5.4 × 10^-19 J

Recognize the concept and significance of diversification in investment portfolios.

Define risk in investment and understand its measurement.

Learn the basics of portfolio theory and its implications on investment decisions.

Understand the concepts of expected and required returns on investments.