Problem 26.28 Monochromatic light from a distant source is incident on a slit 0.

Question

Problem 26.28 Monochromatic light from a distant source is incident on a slit 0.745mm wide. On a screen 2.00m away, the distance from the central maximum of the diffraction pattern to the first minimum is measured to be 1.50mm. Part A Calculate the wavelength of the light. Problem 26.28 Monochromatic light from a distant source is incident on a slit 0.745mm wide. On a screen 2.00m away, the distance from the central maximum of the diffraction pattern to the first minimum is measured to be 1.50mm. Part A Calculate the wavelength of the light. Monochromatic light from a distant source is incident on a slit 0.745mm wide. On a screen 2.00m away, the distance from the central maximum of the diffraction pattern to the first minimum is measured to be 1.50mm. Part A Calculate the wavelength of the light. Part A Calculate the wavelength of the light.

Explanation / Answer

y = m lambda L/a


a) 1.5E-3 = 1*lambda*2/0.745E-3=5.59E-7 m or 559 nm

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