Chapter23LectureNotes
Formulas:
n = c/v
f = R/2
1/do+ 1/di = 1/f
m = hi/ ho = -di/ do
n1sin1 = n2sin2
sinC = n2/n1
P = 1/f
Demonstrations:
Blackboard Optics
Mirror Mirage
Mirrors and lenses to show
TheReflectionofLightandMirrors
WaveFrontsandRays
A wave f
Chapter24LectureNotes
Formulas:
Double slit diffraction:
Bright fringes when
Dark fringes when
sin = m/d
sin = (m+1/2)/d
Single slit diffraction
sin = /W
Bright spots in diff. grating
Thin Films:
m = 0,1,2,.
m = 0,1,2,.
for first dark fringe
sin= m/d
m =
Chapter 12 Lecture Notes
Formulas:
v (331 + 0.60T ) m/s
IP/A
I xo2
= 10log(I/Io)
I = P/4r2
v =/T = f
for a stretched string
n= 2L/n,
for a stretched string
n= 2L/n, f = nv/2L n= 1,2,3,. for a tube open at both ends.
n= 4L/n, f = nv/4L n= 1,3,5,. for a tub
Chapter11LectureNotes
Formulas:
F = -kx
f = 1/T
E = (1/2)mv2 + (1/2)kx2 = (1/2)mvo2 = (1/2)kA2
x = Acost = Acos(2ft) = Acos(2t/T).
v = -Asint.,
a = 2A cost
vo2= (k/m)A2
vo = A
v = /T =f
fn = nv/(2L)
n= 2L/n
fn/n = fm/m
fn = nf1
Demonstrations:
Mass on a s
OpticalInstruments
Formulas:
RP = 1/f
Relation of Refractive Power to focal
length
M = '/
M = 1 + N/f
Magnifying glass with eye focused at near
point
M = N/f
Magnifying glass with eye focused at
infinity
sin =
1.22/D
= 1.22/D
For small angles.
1. Optical
Chapter22LectureNotes
Formulas:
Bl = oI + ooE/t
E = EA
= c/f
S = P/A = U/tA =uV /tA = uc
u = U/V = (1/2)oE2 + 1/(2o)B2 =oE2 = (1/o)B2
Demonstrations:
Show a transverse wave (rope), and a longitudinal wave
(slinky).
Energy of a short wave transmitter
EM s
hapter21LectureNotes
Formulas:
= BAcos
Faraday's Law: E = -N /t
E = Bvl
E = NABsint
M = (N22)/I1
E 2 = -MI1/t
L = N/I
E = -LI/t
2
Solenoid: L = on AlEnergy = (1/2o)B2Al
Energy = (1/2)LI2
Energy Density = Energy/volume = (1/2o)B2
Ip/Is =Vs/Vp = Ns/Np
Xc =
Chapter20LectureNotes
Formulas:
B = oI/2r
"Into"
B= NoI/(2R)
"Out"
B = onI
Bl = oI
F = Bqvsin
r = mv/Bq
m = (er2/2V)B2
F = ILBsin
= NIABsin
F/L = I2I1o/2d
Constants:
1 T = Newton-second/(coulomb-meter) = N/Am
o = 410-7 Tm/A
Demonstrations:
Field from a
Chapter18LectureNotes
Formulas:
I =q/t
V = IR
R = L/A
= o[1+(T-To)]
P = IV = I2R = V2/R
Demonstrations:
Light Bulb and Power.
EMFandCurrent
Alessandro Volta (1800): Invented the electric battery and was able to produce a steady flow
of electric charge. A
Chapter17LectureNotes
Formulas:
qV = UE
W = Fd(cos)
W = -UE
potential
Definition of electric potential
Definition of Work
Relationship between work and
energy for work done by a
conservative field.
V = Ed
Potential for a constant electric
field.
V = kQ/r
Chapter16LectureNotes
Formulas:
Constants:
e = 1.6010-19 C
k = 1/(4o) = 8.988109 Nm2/C2
o = 8.8510-12 C2/(Nm2)
Demonstrations:
1. Electrostatics
Rub rubber and glass
rods with wool, etc.
Positive is defined as
glass rubbed with silk.
Negative is defined a