Question #80927
A gratting of width 2inches is ruled with 15000 lines per inch. Find the smallest wavelength separation that can be resolved in second order at a mean wavelength of 500nm
Expert's answer
R=λ/∆λ=mN.
m=2,N=15000∙2=30000
So,
R=mN=2∙30000=60000.
We have
λ/∆λ=mN → ∆λ=λ/mN=(500∙〖10〗^(-9))/60000=0.0083∙〖10〗^(-9) m=8.3 pm.
m=2,N=15000∙2=30000
So,
R=mN=2∙30000=60000.
We have
λ/∆λ=mN → ∆λ=λ/mN=(500∙〖10〗^(-9))/60000=0.0083∙〖10〗^(-9) m=8.3 pm.
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#340153 on Dec 2023
#340153 on Dec 2023
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