46. a) Explain why a pattern of bright and darkfringes is visible on a screen when a light isÂ
shone through a double slit.
b) Upon using Thomas Young’s double-slit experiment toobtain measurements, theÂ
following data were obtained. Use these data todetermine the wavelength of lightÂ
being used to create the interference pattern. Do thisin three different ways.
• The angle to the eighth maximum is 1.12°.
• The distance from the slits to the screen is 302cm.
• The distance from the first minimum to the fifthminimum is 2.95 cm.
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