What is a diffraction grating?
a large number of very thin, equally spaced parallel slits
Why are diffraction gratings more effective than a double slit
Diffraction gratings create a sharper pattern than a double slit
Equation to calculate the angular separation between the order of maxima
dsin(theta)=n(lamda)
d=spacing between adjacent slits
sin(theta)= angular seperation between the order of maxima
n= order of maxima
(lamda)= wavelength of source
Proportion equation for diffraction gratings
d=1/n
d= spacing between adjacent slits
n= number of lines per millimeter
What is angular seperation?
the angle between the first and second maxima (thetaone)-(theta2)
Equation to calculate highest order
n=d/(lamda)
(Round down)
When can the maximum amount of diffractions be seen?
the maximum amount of diffractions with which maxima can be seen is when the beam is at a right angle
Derivation of the diffraction grating equation
sin(theta)=(lamda)/d
(determined by using trigonometry)
