In the two-slit experiment of Fig. 35-10, let angle θ be 20.0°, the slit separation be 4.24 μ m, and the wavelength be λ = 500 nm. (a) What multiple of λ gives the phase difference between the waves of rays r 1 and r 2 when they arrive at point P on the distant screen? (c) Determine where in the interference pattern point P lies by giving the maximum or minimum on which it lies, or the maximum and minimum between which it lies.
In the two-slit experiment of Fig. 35-10, let angle θ be 20.0°, the slit separation be 4.24 μ m, and the wavelength be λ = 500 nm. (a) What multiple of λ gives the phase difference between the waves of rays r 1 and r 2 when they arrive at point P on the distant screen? (c) Determine where in the interference pattern point P lies by giving the maximum or minimum on which it lies, or the maximum and minimum between which it lies.
In the two-slit experiment of Fig. 35-10, let angle θ be 20.0°, the slit separation be 4.24 μm, and the wavelength be λ = 500 nm. (a) What multiple of λ gives the phase difference between the waves of rays r1 and r2 when they arrive at point P on the distant screen? (c) Determine where in the interference pattern point P lies by giving the maximum or minimum on which it lies, or the maximum and minimum between which it lies.
..40 Go Figure 36-45 gives the pa- ß (rad)
rameter of Eq. 36-20 versus the ßs
sine of the angle in a two-slit inter-
ference experiment using light of
wavelength 435 nm. The vertical axis
scale is set by B, = 80.0 rad. What are
(a) the slit separation, (b) the total
number of interference maxima
(count them on both sides of the
pattern's center), (c) the smallest angle for a maxima, and (d) the
greatest angle for a minimum? Assume that none of the interference
maxima are completely eliminated by a diffraction minimum.
0
sin 0
0.5
1
Figure 36-45 Problem 40.
In the two-slit interference experiment in Fig. 5, the slit widths are each 12.0 mm, their
separation is 24.0 mm, the wavelength is 600 nm, and the viewing screen is at a distance
of 4.00 m. Let y = 70.0 cm.
(a) Determine where P on the screen is in the two-slit interference pattern by giving the
maximum or minimum on which it lies or the maximum and minimum between
which it lies.
(b) In the same way, for the diffraction that occurs, determine where point P is in the
diffraction pattern.
The AL shifts
Incident
one wave from
wave
the other, which
determines the
interference.
Path length difference AL
(b)
(a)
B
Figure 5
(1) Consider a double slit experiment set-up with slits of adjustable width. The central
maximum has a size of 36.3cm and the wavelength of the light is A = 442nm. You notice
that there are 11 points of constructive interference inside of the central maximum.
(a) The slits are currently set to be a = 3.32µm wide. What is the distance between the
slits and the screen?
(b) What is the spacing of the slits?
(c) When you increase the width of the slits while keeping the spacing of the slits,
wavelength of light, and distance to the screen constant, which of the following do you
expect to happen? [Note: More than one of these could be correct]
(i) The central maximum will become more narrow.
(ii) The dots will move closer together.
(iii) More dots will appear in the central maximum.
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Diffraction of light animation best to understand class 12 physics; Author: PTAS: Physics Tomorrow Ambition School;https://www.youtube.com/watch?v=aYkd_xSvaxE;License: Standard YouTube License, CC-BY