Q8. Hi please help with each question in photo. Will give thumbs up thanks!

A student wishes to determine the wavelength of the light in a laser beam. To do so, she directs the beam toward a partition with two tiny slits separated by 0.195 mm. An interference pattern appears on a screen that lies 5.30 m from the slit pair. The student's measurements show that two adjacent bright interference fringes lie 1.56 cm apart on the screen. What is the laser's wavelength (in nm) ? nm Light of wavelength 587.0 nm illuminates a slit of width 0.76 mm. (a) At what distance from the slit should a screen be placed if the first minimum in the diffraction pattern is to be 0.95 mm from the central maximum? m (b) Calculate the width of the central maximum. mm