A green laser (lambda = 495 nm) creates the horizontal diffraction pattern shown

Question

A green laser (lambda = 495 nm) creates the horizontal diffraction pattern shown when it passes through a single slit (a = 4.50 mum). Answer the three questions using three significant figures. What is the orientation of the slit? vertical horizontal There's no way to know. You can see from the intensity graph that the first minima occur around plusorminus 22 cm. Suppose that in your experiment, you needed the the first minima to occur around plusorminus 30 cm. Select all the options that could make this adjustment happen. Somehow make the slit narrower. Somehow make the slit wider. Decrease the distance from the slit to the viewing screen. Increase the distance from the slit to the viewing screen. Somehow decrease the wavelength of the light. Somehow increase the wavelength of the light. Change the orientation of the slit.

Explanation / Answer

Part A:

Diffraction pattern in the y-direction (vertical) so slit should be oriented in the x-direction (horizontal)

Part B:

Somehow make the slit narrower

Increase the distance from the slit to the viewing screen

Somehow increase the wavelength

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