Exam 1 Equation Review Flashcards
fm = m(v/2L), m = 1,2,3,4…
frequency of standing sound wave in open/open or closed/closed system
fm = m(v/4L), m = 1,3,4,7…
frequency of standing sound wave in open/closed system
Δd = mλ, m = 0,1,2,3…
constructive path-length difference
Δd = (m+1/2)λ, m = 0,1,2,3…
destructive path-length difference
f osc = 1/2( f1 + f2 )
f beat = | f1 - f2 |
beat frequency, difference between the two individual frequencies
sinΘm = m(λ/d), m = 0,1,2,3…
angles of bright fringes for double-slit interference
ym = ( m λ L ) / d, m = 0,1,2,3…
positions of bright fringes for double slit interference
ym = (m + 1/2) x [ ( λ L ) / d ], m = 0,1,2,3…
positions of dark fringes for double slit interference
ym = LtanΘ
positions of bright fringes due to a diffraction grating distance L from the screen
2t = ( m λ ) / n, m = 1,2,3…
constructive if 0 or 2 reflective phase changes
destructive if 1 reflective phase change
2t = (m + 1/2) (λ / n), m = 1,2,3…
destructive if 0 or 2 reflective phase changes
constructive if 1 reflective phase change
asinΘ = pλ, p =1,2,3…
dark fringes in a single-slit diffraction
yp = (p λ L) / a, p = 1,2,3…
positions of dark fringes on single slit diffraction
Θ1 = ( 1.22 λ) / D
angle of the first minimum in the intensity
w = ( 2.44 λ L) / D
width of a central maximum on a screen
fo = fs [ ( v +/- vo ) / ( v +/- vs ) ]
frequency as heard by a stationary or moving observer
u = m/ L
linear density, mass-to-length ration
v string = ( Ts / u )^1/2
speed of a wave on a string
y(x,t) = Acos [ 2π ( x/λ +/- t/T ) ]
something to do with a history or snapshot graph i think
v = λf
velocity
I = p/a
intensity
n = c/v
index of refraction
λ mat = λ vac / n
wavelength of a material
