If a Beam of Electromagnetic Radiation Has an Intensity of 120

question 34

Multiple Choice

If a beam of electromagnetic radiation has an intensity of 120 W/m²,what is the maximum value of the electric field? (c = 3.0 × 10⁸ m/s,μ₀ = 4π × 10^-7 T • m/A,

• A) 1.5 kV/m
• B) 1.0 µT
• C) 1.0 µV/m
• D) 0.30 kV/m
• E) 0.0032 V/m

---

Definitions:

Secondary Memory

Secondary memory refers to non-volatile storage devices, such as hard drives and solid-state drives, used for long-term data storage beyond a computer's primary memory (RAM).

Hard Disk

A data storage device used for storing and retrieving digital information using rapidly rotating disks coated with magnetic material.

Wrapper Classes

In Java, classes that encapsulate primitive types, allowing them to be used as objects in situations where only objects are supported.

String

A sequence of characters used to represent text in computer programming.