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While researching the use of laser pointers, you conduct a diffraction experiment with two thin parallel slits. Your result is the pattern of closely spaced bright and dark fringes shown in Fig. (Only the central portion of the pattern is shown.) You measure that the bright spots are equally spaced at 1.53 mm center to center (except for the missing spots) on a screen that is 2.50 m from the slits. The light source was a helium–neon laser producing a wavelength of 632.8 nm. (a) How far apart are the two slits? (b) How wide is each one?
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- Not sure how to approach this problem; could I just find the herze of the moving wave and use that to perform a young's double slit calcuation to start with?The fringe of order (1.0000x10^0) is observed at an angle of (7.3000x10^0)° when light of wavelength (2.62x10^0) nm falls on two narrow slits. How far apart are the slits in micrometers? Give your answer to 3 sf. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10 AnswerWhile doing some spring cleaning you find an old laser pointer. Youtake the laser into your physics laboratory to perform a double-slitexperiment. The distance from the barrier to the screen is 2.50 m andthe two slits are 0.350 mm apart from each other. You measure thedistance from the central maximum to the 2nd order maximum andfind that it is 9.04 mm. What is the wavelength of your laser pointer’slight?
- Source S is placed inside a glass water tank, as shown below. The surface of the water is covered with oil. Two monochromatic coherent light rays 1 and 2, go through the path as shown in the figure. If the wavelength of light in water is λ = 400 nm and indices of refraction of oil, water, and glass are noil = 1.2, nwater = 1.33, nglass = 1.5 and a dark fringe appears at point P , what is x?Narrow, equally spaced vertical slits with equal widths are located at a distance of D = 2.47 m from a screen. The intensity pattern in the figure is observed when light with wavelength = 570 nm from a laser passes through the slits, illuminating them uniformly. The screen is perpendicular to the laser beam. 0 1 2 3 4 5 6 7 8 9 cm 7 The number of slits is ... Submit Answer Incorrect. Tries 1/3 Previous Tries Calculate the center to center spacing between the slits. Use the cm scale to measure distances on the screen. 2.25x10^-6 cm There is a fixed relation between wavelength, slit separation, and angle between the first (or second, third etc) order maximum and the central maximum. The angle can be determined from the distance to the screen and the separation between the first maximum and the central maximum on the screen. Submit Answer Incorrect. Tries 1/12 Previous Tries Calculate the width of the slits. Use the cm scale to measure distances on the screen. Submit Answer Tries 0/12Write down an expression for the highest order mof diffraction in a double slit experiment if the distance between the slits is a and slits are illuminated with light of the wavelength . Please use "*" (without the quotes) for products (e.g. B*A), "/" for ratios (e.g. B/A) and the usual "+" and "- "signs as appropriate. For exponents (e.g. A²) use A*A or A^2 notation: thus A³/B should appear as either A*A*A/B or A^3/B. For greek letters use "theta" (without the quotes) and for trigonometric functions use "cos", "tan", "sin" (without the quotes). Thus for Acose use A*cos theta. Please use the "Display response" button to check you entered the answer you expect. Answer: Display response
- Laser light at 600 nm falls on a double-slit apparatus with slit separation 6 μm. Find the separation between the following fringes as seen on a screen 1 m from the slits. (a) The first and second bright fringes. (b) The third and fourth bright fringes.If we treat a double slit experiment as a point-like source where distances from the slits are measured by r₁ and r2 respectively, a plane wave from each slit would Ae-i where ;=kr; -wt+do and 01 - 02= take the form ₁ Ae-i1 and 2: = = k(r₁ r₂). 1. Solve for the probability density ₁+ 22 in terms of A, k, r₁ and r2. -