A 15mw energy laser has beam exit diameter of 2cm and beam

Assignment Help Physics

Reference no: EM13468958

A 15mw energy laser has a beam exit diameter of 2cm and beam divergence of 0.0002radians.

a) Calculate the power density of the beam at 100meters away from the source.

b) Assuming that this beam has a wave length of 312nm, and the viewing time is 10minutes/day, determine if the TLV is exceeded.

After 7 hours of its preparation determine the portion left of a radioactive isotope, if its half-life is known to be 5 hours.

Reference no: EM13468958

Questions Cloud

A wall was constructed in middle of near field region : 1. given the energy range of a radiation source to be 0.5 ev. calculate the same energy range in joules. dont use the

Create a 10- to 12-slide microsoftreg powerpointreg : create a 10- to 12-slide microsoftreg powerpointreg presentation with speakers notes comparing a domestic organized

Suggest a realistic solution to control organized crime by : writenbspa 1050- to 1750-word paper using definitions principles and theories from previous assignments in which you

Incorporate theoretical concepts to associate this scenario : you are new member of internal affairs and are still getting to know everybody. you have been asked by your lieutenant

A 15mw energy laser has beam exit diameter of 2cm and beam : a 15mw energy laser has a beam exit diameter of 2cm and beam divergence of 0.0002radians.anbspnbspcalculate the power

Find out an article which explains how files are organized : find an article that describes how files are organized on a website. what are two best practices regarding web file

What are some of the factors that influence consumer : in this week reading you learned of efforts by new yorks mayor michael bloomberg to ban the sale or service of soda

Research the phase resources to research the role of the : primary task response within the discussion board area write 400-600 words that respond to the following questions with

The method of creating and maintaining a website usually : question 1 the process of creating and maintaining a website typically involves both development and production

User Account

All Pages