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Using a grating with a spacing of 0.00045 cm, a line (which looks like red light) appears 32 cm from the central line on a screen. The screen is 2.3 m from the grating. What is the wavelength of the light? Answer in units of nm.

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Using a grating with a spacing of 0.00045 cm, a line (which looks

like red light) appears 32 cm from the central line on a screen. The screen is 2.3 m from the grating. What is the wavelength of the light? Answer in units of nm.

 
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