In Young's experiment a mixture of orange light (611 nm) and blue light (471 nm) shines on the double slit. The centers of the first- order bright blue fringes lie at the outer edges of a screen that is located 0.494 m away from the slits. However, the first-order bright orange fringes fall off the screen. By how much and in what direction (toward or away from the slits) should the screen be moved, so that the centers of the first-order bright orange fringes just appear on the screen? It may be assumed that is small, so that sin @ is approximately equal to tan 6, and the sign "+" means that the screen moves toward the slits. Bright orange fringe (m=1) Bright blue fringe (m = 1) KE Central bright fringe Number Double slit Screen Units

Physics for Scientists and Engineers: Foundations and Connections
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Chapter35: Diffraction And Interference
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In Young's experiment a mixture of orange light (611 nm) and blue light (471 nm) shines on the double slit. The centers of the first-
order bright blue fringes lie at the outer edges of a screen that is located 0.494 m away from the slits. However, the first-order bright
orange fringes fall off the screen. By how much and in what direction (toward or away from the slits) should the screen be moved, so
that the centers of the first-order bright orange fringes just appear on the screen? It may be assumed that is small, so that sin @ is
approximately equal to tan 6, and the sign "+" means that the screen moves toward the slits.
Bright orange fringe
(m=1)
Bright blue fringe
(m = 1)
KE
Central bright fringe
Number
Double slit
Screen
Units
Transcribed Image Text:In Young's experiment a mixture of orange light (611 nm) and blue light (471 nm) shines on the double slit. The centers of the first- order bright blue fringes lie at the outer edges of a screen that is located 0.494 m away from the slits. However, the first-order bright orange fringes fall off the screen. By how much and in what direction (toward or away from the slits) should the screen be moved, so that the centers of the first-order bright orange fringes just appear on the screen? It may be assumed that is small, so that sin @ is approximately equal to tan 6, and the sign "+" means that the screen moves toward the slits. Bright orange fringe (m=1) Bright blue fringe (m = 1) KE Central bright fringe Number Double slit Screen Units
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