2. A double slit produces the pattern shown below on a screen. The perpendicular distance from the screen to the slits is 8.20m. The slit separation is 0.195mm. What is the laser wavelength? 20.3 cm
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- 5) You are looking at the fringe pattern on a screen produced by a laser beam passing through a pair of closely-placed slits, and then travelling about a meter until the pattern hits the screen. A) You put a thin sheet of glass over one of the slits (one slit only). The effect of the glass is to add exactly half of a wavelength to the light that passes through that one slit. Explain precisely what effect this will have on the fringe pattern. 1t will be13. Suppose that you have a laser of wavelength 2 = 450 nm, and a single slit with a width of a = 0.16 mm. You plan to place the slit exactly L = 1.00 m away from a viewing screen, but you want to predict the positions of the dark fringes in advance. First, let's check if the small-angle approximation applies to this situation. a. Use på a sin 0 to calculate the angle 8₁ for the first order (p = 1) dark fringes: = b. Calculate sin 0₁: c. Calculate tan 0₁: d. Compare the values for sin 0, and tan 8₁. Are these approximately equal? If so, then we can use the small angle approximation 0, (rad) ≈ P²P for further R a L calculations, and the dark fringes should be equally spaced. S 2015 #10772/ 754911 My PORTALLA 1500 ALTERNAA laser emitting light with a wavelength of 560 nm is directed at a single slit, producing an interference pattern on a screen that is 3.0 m away. The central maximum is 5.0 cm wide. a. Determine the width of the slit and the distance between adjacent maxima. b. What would the effect on this pattern be, if the width of the slit was smaller? the screen was moved further away? a larger wavelength of light was used? c. How would this interference pattern differ if the light was shone through a 1. double slit? 2. diffraction grating?
- For any vector quantity, be sure to always include the magnitude and direction tyPls help ASAP.10. You have a single-slit diffraction apparatus, with a slit 4.60 × 10−6 m wide arranged 1.80 m from the screen. You would like an anti-node to appear 68.2 cm from the right bisector. What are two possible visible wavelengths you could use?
- 3. A single slit is used to create an interference pattern on a screen using light. Consider the statements that follow with respect to the pattern generated: I. A longer wavelength of light generates a wider central maximum. II. When using white light, the outer fringes are coloured. III. A narrower slit generates a wider central maximum. Which of the above statements is/are incorrect? a. b. c. I only I and II only I and III only d. e. I, II, and III noneIn a thin slit Fraunhofer diffraction, if the width of the slit (b) is reduced, what will happen? A. Diffraction angle (0) is reduced. B. Diffraction angle (0) is increased. C. Diffraction angle (0) remains unchanged, D. The maximum irradiance or light intensity (I,) remains unchanged.