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A brass sheet has a thin slit scratched in it. At room temperature (22.0°C) a laser beam is shined on the slit and you observe that the first dark diffraction spot occurs at ± 20.0° on either side of the central maximum. The brass sheet is then immersed in liquid nitrogen at 77.0 K until it reaches the same temperature as the nitrogen. It is removed and the same laser is shined on the slit. 1) At what angle will the first dark spot now occur? Linear Expansion Coefficient (a) for brass is 18.7X10-° K-. (Express your answer to three significant figures.)

A brass sheet has a thin slit scratched in it. At room temperature (22.0°C) a laser beam is shined on the slit and you observe that the first dark diffraction spot occurs at ± 20.0° on either side of the central maximum. The brass sheet is then immersed in liquid nitrogen at 77.0 K until it reaches the same temperature as the nitrogen. It is removed and the same laser is shined on the slit. 1) At what angle will the first dark spot now occur? Linear Expansion Coefficient (a) for brass is 18.7X10-° K-. (Express your answer to three significant figures.)

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A brass sheet has a thin slit scratched in it. At room temperature (22.0°C) a laser beam is shined on the slit and you observe that the first dark diffraction spot occurs at ± 20.0° on either side of the central maximum. The brass sheet is then immersed in liquid nitrogen at 77.0 K until it reaches the same temperature as the nitrogen. It is removed and the same laser is shined on the slit. 1) At what angle will the first dark spot now occur? Linear Expansion Coefficient (a) for brass is 18.7X10-°K-. (Express your answer to three significant figures.) Submit
Transcribed Image Text:A brass sheet has a thin slit scratched in it. At room temperature (22.0°C) a laser beam is shined on the slit and you observe that the first dark diffraction spot occurs at ± 20.0° on either side of the central maximum. The brass sheet is then immersed in liquid nitrogen at 77.0 K until it reaches the same temperature as the nitrogen. It is removed and the same laser is shined on the slit. 1) At what angle will the first dark spot now occur? Linear Expansion Coefficient (a) for brass is 18.7X10-°K-. (Express your answer to three significant figures.) Submit
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