another lil question (1 Viewer)

HSC :(

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if we were given a wavelength of say a 100nm, and had to sub it into an equation like c = f *wavelength,
what do we need to divide the wavelength by to get into the form so we can sub into the equation
:confused: :confused: :confused:
 

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HSC
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100nm = 100 nano meters

in c=f * % (say % =wavelength)

% is in meters..so i think u need to divide it by 10^12
 

HSC :(

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hey i jus worked it out
u gorra divide it by a million (10^9)
thanx anywaayz
 

Nasti

when does uni start?
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just remember this little trick

milimetres (mm) = x10^-3 for metres
micro-metres (the weird u/p shaped thing) = x10^-6 for metres
nano-metres (nm) = x10^-9 for metres

remember it goes -3, -6 and -9
and remember mili is smallest (-3) and nano sounds like nine therefore -9 leaving micro as -6

easy!
 
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