PHYsheet

PHYsheet - Ch. 34: I = -p (plane mirror) Spherical mirror:...

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Ch. 34: I = -p (plane mirror) Spherical mirror: f=r and 1/p+1/i=1/f also thin lens (thin lens in air) 1/f= (n-1)*(1/r1-1/r2) (lateral magnification) |m|=h'/h and m= -i/p n1/p+n2/i= (n2-n1)/r m25cm/f (simple magnifier) Ch. 35: n=c/v n1*sin1= n2*sin2 Law of refrac. L=d*sin (path length difference) d*sin=m, for m=0,1,2... (max-bright fringes) d*sin=(m+) for m=0,1,2... (min-dark fringes) Intensity in double slit interference: I=4*Io*cos2( ) =[(2d)/ ]*sin Thin films: 2L=(m+)*(/n2) for m=0,1,2... (max-bright film in air) 2L=m*(/n2) for m=0,1,2... (min-dark film in air) Ch 36: Single slit: a*sin=m for m=1,2,3... (mindark fringes) I=Im*(sin/)2 ==((a)/ )*sin Diffraction by a Circular aperture: Sin=1.22*(/d) (first min) R=1.22*(/d) (Rayleigh's criterion) Diffraction by a double slit: I=Im*(cos2)*(sin/)2 Diffraction gratings: d*sin=m for m = 0,1,2.. (max--lines) hw= /(Ndcos) (-width of line @ ) D=m/(d*cos) (dispersion of grating) R=Nm 2d*sin = m for m=1,2,3... (Bragg's law) ...
View Full Document

This note was uploaded on 04/08/2008 for the course PHY 208 taught by Professor Petrou during the Spring '06 term at SUNY Buffalo.

Ask a homework question - tutors are online