(adsbygoogle = window.adsbygoogle || []).push({}); Circular Diffraction Patterns HELP!

1. The problem statement, all variables and given/known data

2. Relevant equations

theata_1=1.22(lambda)(L)/D L distance from screen, D diameter of slit

w=2.44(lambda)(L)/D

3. The attempt at a solution

so this is what i did not sure where i went wrong maybe at rounding off...

w=2.44(lambda)(L)/D

(10.3/1000)=92.44)(633*10^(-9))(0.8)/D

solving for D i got the diameter to be the following

D=0.119962....mm

i rounded off to three significant figure

D=0.120mm is this correct b/c when i did this i got it wrong, could some one tell me where i went wrong this.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Circular Diffraction Patterns

**Physics Forums | Science Articles, Homework Help, Discussion**