The Frequency of a Photon of Electromagnetic Radiation with an Energy

question 15

Multiple Choice

The frequency of a photon of electromagnetic radiation with an energy of 7.3×10 ^{- 18} J is

• A) 2.7×10 ^{- 8} s ^{- 1}
• B) 9.9×10¹⁹ s ^{- 1}
• C) 2.0×10¹⁶ s ^{- 1}
• D) 1.1×10¹⁶ s ^{- 1}
• E) none of these

---

Definitions:

Total Resistance

The sum of all resistances in an electrical circuit, influencing the overall current flow.

Ohm's Law

A fundamental principle stating that the current through a conductor between two points is directly proportional to the voltage across the two points, given the resistance remains constant.

Earth Ground

A ground established by driving a metal rod into the earth.

Ground Symbol

A universal symbol used in electrical diagrams and schematics to denote the common return path for an electric current, or a direct physical connection to the Earth.