Monochromatic light strikes a thin film normal to the surface. On either side of the thin film is air. To obtain a reflected minimum, the lowest (non-zero) thickness of the film must be 2 a. much less than d. b. C. 2 8 कर 2 4 e. 2 2

Monochromatic light strikes a thin film normal to the surface. On either side of the thin film is air. To obtain a reflected minimum, the lowest (non-zero) thickness of the film must be 2 a. much less than d. b. C. 2 8 कर 2 4 e. 2 2

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter27: Wave Optics

Section: Chapter Questions

Problem 49PE: (a) Sodium vapor light averaging 589 nm in wavelength falls on a single slit of width 7.50 m. At...

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Concept explainers

Interference of Light

The word "constructive" signifies addition in interference. Constructive interference occurs when the path of the waves that start from the slit differs by 1 entire wavelength or in the intervals of the same. Hence, the waves that are presented on the screen are in phase (crest to crest/trough to trough). The waves interfering constructively forms bright fringes on the screen.

Question

Pls help ASAP.

6. Monochromatic light strikes a thin film normal to the surface. On either side of the thin film is air. To obtain a reflected
minimum, the lowest (non-zero) thickness of the film must be
1
much less than
d.
a.
b.
C.
RO<
8
e.
2
2

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(a) Sodium vapor light averaging 589 nm in wavelength falls on a single slit of width 7.50 m. At what angle does it produces its second minimum? (b) What is the highest-order minimum produced?
What If? Suppose light strikes a single slit of width a at an angle from the perpendicular direction as shown in Figure P37.6. Show that Equation 37.1, the condition for destructive interference, must be modified to read sindark=masinm=1,2,3,
In Figure 38.4, assume the slit is in a barrier that is opaque to x-rays as well as to visible light. The photograph in Figure 38.4b shows the diffraction pattern produced with visible light. What will happen if the experiment is repeated with x-rays as the incoming wave and with no other changes? (a) The diffraction pattern is similar. (b) There is no noticeable diffraction pattern but rather a projected shadow of high intensity on the screen, having the same width as the slit. (c) The central maximum is much wider, and the minima occur at larger angles than with visible light. (d) No x-rays reach the screen.
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