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Phy Ch 6 - Coggle Diagram
Phy Ch 6
6.1
Diffraction of light
Colour
Slit width
Interference of light
Double slit
Fking fringes
Light as a wave
Visible 400nm to 700nm
6.3
Plane transmission grating (different grating)
Symmetric
Further, larger sep
d sin θ = λ n
sin θ = (λ/d) n
Factors: pattern
Grating spacing
Wavelength
Grating-screen distance
Angle of diffraction
Further, larger sep
6.2
Young's double slit
Fringes
Symmetric
Evenly paced
Monochromatic light needed (single frequency
Coherent + similar
Fringe sep
Δy = λD /a
D>>a
D>>yn
Theta n is very small
Δy=
λ: Wavelength
D: slit to receiver distance
a: slit separation
Path difference HAVE MAX
a = nλ
6.4
Radio waves
Microwaves
Infra-red
VSB L
Ultra-violet radiation
X-rays
Gamma rays
PED SCAN
10^-11 to 10^-8 m
10^-8 to 4*10^-7 m
Sterilizer
10^-3 to 7*10^-7 m
Heating
Measuring cylinder
Signal transfer
10^-1 to 10^-3 m
Oven thing
Radar
Satellite signal
">10^-1m"
Longest wavelength
Diffract significantly
Phone sig
Contactless payment
c = 3*10^8