A-Level Physics AS2 Formula Sheet Cheat Sheet (DRAFT) by gmurphy

f = T-1	Frequency = Period Time of Wave -1
v=fλ	Velocity = Frequency x Wavelength

n = (sin i)÷(sin r)	Refractive Index = (sin [Incident Ray])÷(sin [Refracted Ray])
n =(c1)÷(c2)	Refractive Index = (Velocity Before Refrac­tio­n)÷­(Ve­locity After Refrac­tion)
sin c = n-1	sin (Critical Angle) = Refractive Index -1

f-1=u-1+v-1	(Focal Length)-1 = (Object Distance)-1+(Image Distance)-1
f-1=P**	(Focal Length)-1 = Power of Lens
m= (hi)÷(ho)	Magnif­ication = (Height of Image)­÷(H­eight of Object
m= (v)÷(u)	Magnif­ication = (Image Distan­ce)­÷(O­bject Distance)

λ=(ay)÷d	Wavelength = Slit Separation x Fringe Separation ÷ Distance to Screen
dsinϑ=nλ	(Slit Spacing)sin(Angle From Centre) = (Order of Maxima) x Wavelength