A grating is made with 600 slits per millimeter. What is the slit separation?
A) $916 \mathrm{~nm}$
B) $160 \mathrm{pm}$
C) $600 \mathrm{~nm}$
D) $3.33 \times 10^{-6} \mathrm{~m}$
E) $1.67 \times 10^{-6} \mathrm{~m}$

Question

Quizplus · Accepted Answer

The slit separation $d$ is the inverse of the number of slits per meter. With 600 slits per millimeter, there are 600,000 slits per meter, so $d = \frac{1}{600,000} \, \text{m} = 1.67 \times 10^{-6} \, \text{m}$.

A Grating Is Made with 600 Slits Per Millimeter 916 nm916 \mathrm{~nm}916 nm

A Grating Is Made with 600 Slits Per Millimeter $916 \mathrm{~nm}$