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Question: 

A high-energy pulsed laser emits a 1.0-ns-long pulse of average power $1.5 \times 10^{11} \textrm{ W}$. The beam is nearly a cylinder $2.2 \times 10^{-3} \textrm{ m}$ in radius. Determine

  1. the energy delivered in each pulse, and
  2. the rms value of the electric field.

Source: Giancoli, Douglas C., Physics: Principles with Applications, 7th Edition, 2014.

Quick Answer: 
  1. $150 \textrm{ J}$
  2. $1.9 \times 10^9 \textrm{ N/C}$

Giancoli 7th Edition, Chapter 22, Problem 30

(2:15)

Chapter 22, Problem 30 is solved.

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