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I'm working on a final physics exam, and I've got everything but these two that I'm stuck on. Any help would be appreciated, and explanations too (:


A and B are both pointing up.

1. ^ In that diagram, the image of object A would be
A) real, reduced, and upright.
B) virtual, enlarged, and upright
C) virtual, reduced, and inverted.
D) virtual, reduced, and upright.


2. Monochromatic light shines on the surface of a diffraction grating with 5.3 x 103 lines/cm. The first-order maximum is observed at an angle of 17°. Find the wavelength.
A) 420 nm
B) 520 nm
C) 530 nm
D) 550 nm

Thanks again!

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