A monochromatic light of wavelength `500 nm` is incident normally on a single slit of width `0.2 mm` to produce a diffraction pattern. Find the angular width of central maximum obtained on the screen, `1 m` away.
Estimate the number of fringes obtained in YDSE with fringe width `0.5 mm`, which can be accommodated within the region of total angular spread of the central maximum due to a single slit.