A beam of laser light with a wavelength of =705.00 nm passes through a circular aperture of diameter =0.181 mm. What is the angular width of the central diffraction maximum formed on a screen?

the answer should be in the picture.

in most common fires, oxygen is needed for an oxidation reaction to takes place. the combination of oxygen with any element as fuel can create fire and combustion will occur especially if wood, light materials and other combustible things are combine with oxygen.