(i.) At what angle do you observe the 4th order maximum relative to the central maximum when 400 nm light is incident normally on two slits separated by 0.025 mm? (a) 1.83◦ (b) 2.75◦ (c) 3.67◦ (d) 4.13◦ (e) None of the above (ii.) At what angle do you observe the 3rd order minimum? Set-up is the same as above and with a slit separation of 0.025 mm. (a) 2.29◦ (b) 3.45◦ (c) 5.58◦ (d) 1.79◦(e) none of the above

(a) If the third-order maximum for monochromatic light falling on a double slit is at an angle of 23.6°, at what angle (in degrees) is the fifth-order maximum?   ° (b) What is the angle (in degrees) of the fourth minimum?  ° (c) What is the highest-order maximum possible here?

Find the angle in degrees between the first minima for the two sodium vapor lines, which have wavelengths of 589.1 and 589.6 nm, when they fall upon a single slit of width 2.90 µm. .01008912 O (b) What is the distance in mm between these minima if the diffraction pattern falls on a flat screen 2.00 m from the slit? .3448 X mm (c) Discuss the ease or difficulty of measuring such a distance. (Select all that apply.) ✔This distance is easily measured using a microscope. This distance is easily measured by the human eye. ✔This distance is easily measured using a magnifying glass.

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