The light emitted by a laser pointer and whose wavelength is 670 nm crosses a slit 12 μm wide. A screen is placed 30 cm away. What is the gap between adjacent minima (excluding the part on either side of the central maximum)?
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The light emitted by a laser pointer and whose wavelength is 670 nm crosses a slit 12 μm wide. A screen is placed 30 cm away. What is the gap between adjacent minima (excluding the part on either side of the central maximum)?

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- Ammabel passes red light of wavelength 729 nm through a diffraction grating of 959 lines/cm. If the screen is placed 9 m away, what is the distance in centimeters between the first and third principal bright spots? Please give your answer with no decimal places..Vhat slit spacing is required to give a separation of 2 cm between the second and third order maxima for two slits if 1 = 550 nm and D = 1.50 m?A two-slit pattern on a screen 2.38 m from the slits. If the two fourth-order maxima are 32.0 cm apart, what is the separation in cm between the two first-order maxima?
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