For single slit diffraction we have as a condition for nodes...
wsin(\theta _(n))=n\lambda
Given that the maximum value of the sin function is 1 , determine the highest value of
n
for light of wavelength 665 nm diffracting through a slit of width 10 microns (
=10,000nm
. ) note: There must be a max value for n because the path difference can never be greater than the width of the slit.