Using a grating with a spacing of 000046 cm a line which
Using a grating with a spacing of 0.00046 cm, a line (which looks like red light) appears 27 cm from the central line on a screen. The screen is 1.9 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 000046 cm a line which looks like red light appears 27 cm from the central line on a
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