(adsbygoogle = window.adsbygoogle || []).push({}); Diffracting grating???kinda confused?

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

bits given:lamda(660nm) n=1,d=3.33, angle=?

2. Relevant equations

n(lambda)=dsin(theta)

3. The attempt at a solution

so from re-arranging the formula,etc i got this :6.66x^-7/3.33=sin(theta)

=>2x10^-7=sin(theta)

=>angle=1.14x10^-5(after inverse sin function) ? not sure if thats the answer =/

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# Diffracting grating?kinda confused?

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