3. You have a laser with wavelength = 635.3[nm]. The grating has a slit spacing of 1.633E-03[mm]. What is the angle measured for n=1?
angle = _____________________[radian]
Use three sig. figs.; or use N/A, if not enough information is given.
please help and explain this ,thanks
2007-11-17 12:10:33 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Take a look at the diagram on http://hyperphysics.phy-astr.gsu.edu/hbase/phyopt/gratcal.html
(FYI, this is a gold mine for you to get an understanding on physics/optics)
d sin θ = m * λ
From your problem, you know
d = 1.633E-3mm = 1.633E -6m
m = n = 1
λ = 635.3nm = 635 E -9m
Solve for sin θ
sin θ = mλ/d
= 1 (635E-9)/(1.633E-6)
= 0.3888
Therefore, θ = 22.9
Hope this helps!
2007-11-17 13:35:08 · answer #1 · answered by David M 4 · 0⤊ 0⤋
Just 2 let u know l am lost in this ss
2007-11-17 20:13:06 · answer #2 · answered by pirateron 5 · 0⤊ 0⤋