# Angular Width Question in Single Slit Diffraction

orangegalaxies
Homework Statement:
What is the angular width between the second minima and second maxima on the same side of the central maxima if a wavelength of 650 nm passes through a slit of 3.0 x 10^-3m wide.
Relevant Equations:
sin theta = n(wavelength)/width
i feel like subbing the numbers into the equation isn't enough because of the second minima and maxima thing? not sure what to do... would appreciate any help.

Homework Helper
Gold Member
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Homework Statement:: What is the angular width between the second minima and second maxima on the same side of the central maxima if a wavelength of 650 nm passes through a slit of 3.0 x 10^-3m wide.
Relevant Equations:: sin theta = n(wavelength)/width

i feel like subbing the numbers into the equation isn't enough because of the second minima and maxima thing? not sure what to do... would appreciate any help.
Have you drawn a diagram?

Homework Helper
Gold Member
2022 Award
Relevant Equations:: sin theta = n(wavelength)/width
Is 'theta' in your formula the angle for a maximum or for a minimum?

Singular: maximum, minimum
Plural: maxima, minima