Green light from a laser is incident on two vertical slits $1\mathrm{.}0$ mm apart. The diffraction pattern is observed on a screen $5\mathrm{.}0$

m from the slits.

The green laser is replaced with a second laser using a different wavelength and you note that the interference fringes

move farther apart. Which of these colors could this second laser haved used? $[$select$\text{'}$

A red

B$.$ orange

C$.$ yellow

D$.$ blue

E$.$ violet

You switch back to the green laser. You want the spacing between the fringes to be smaller than what is observed. Which

of the following could you do$?$

$[$ Select $]$

I. Move the screen closer to the slits.

II Move the screen farther from to the slits.

III. Use a set of slits that we closer together.

IV$.$ Use a set of sLits that are farther apart