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10. [1pt] Calculate the angle between the first-order minima for the two sodium vapour lines, which...

10. [1pt]
Calculate the angle between the first-order minima for the two sodium vapour lines, which have wavelengths 589.0 nm and 589.6 nm, when the light passes through a single slit 2.50 µm wide.

Correct, computer gets: 0.0141 deg

11. [1pt]
What is the distance between these minima on a screen 1.65 m behind the slit?

Answer:  Last Answer: 0.041 cm
Not yet correct, ONE try left!!

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