2. A double slit interference apparatus is illuminated with monochromatic light of wavelength 1 = 550. nm . The slit separation is d = 4.50µm. On a screen D= 2.00 m away from the slits, a pattern of fringes appears. On the optical axis at the screen, the central bright fringe is located at Yo = 0.00 . what is the location, y,, of the sixth bright fringe (m = 6) at the screen?
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A: If you have any questions let me know in comment box thankyou for your question.
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- Laser light is shown onto a single slit. The light is shown onto a screen 2.5m away. The distance between the m=1 and m=7 dark fringe is 1.0cm.What is the width of the slit (mm) if the wavelength of the laser is 7.6nm?Use the small angle approximation.1)A red low-power laser with λ = 634nm was beamedat a double-slit grating. An interference patternappeared on a screen 2.50 m from the grating. Thedistance from central spot to the next bright spotwas 22.5cm.What is the spacing between the slits in the grating? 2. The red laser (in Q1) is replaced by a blue laserwith a shorter wavelength. All else is the same.Show mathematically whether the interferencepattern it produces will place the bright spots closeror further apart. 3.Given that the blue laser in Q2 has a wavelength of445 nm, calculate the “spot-spacing” for the sameslit grating and screen distance as in Q1. 4.A green laser beam produces spots which are0.334m apart (central to m=1) when a grating is usedwith slits 3,000 nm apart and a screen 1.90m away.What is the wavelength of the laser light?4. A single slit of width 0.21 mm is illuminated with monochromatic light of wavelength 635 nm, and a diffraction pattern is formed on a screen 2.00 m away from the slit. What is the width of the bright fringe adjacent to the central maximum? cm
- 8. Coherent light of wavelength 501.5 nm is sent through two GP parallel slits in an opaque material. Each slit is 0.700 um wide. Their centers are 2.80 um apart. The light then falls on a semicylindrical screen, with its axis at the midline between the slits. We would like to describe the appearance of the pattern of light visible on the screen. (a) Find the direction for each two-slit interference maximum on the screen as an angle away from the bisector of the line joining the slits. (b) How many angles are there that represent two-slit inter- ference maxima? (c) Find the direction for each single-slit interference minimum on the screen as an angle away from the bisector of the line joining the slits. (d) How many angles are there that represent single-slit interference minima? (e) How many of the angles in part (d) are identical to those in part (a)? (f) How many bright fringes are visible on the screen? (g) If the intensity of the central fringe is Imas what is the intensity of the…1. A diffraction grating has N lines per centimeter and is placed 2.19 m away from a screen. Sunlight shines on the diffraction grating, incident along the normal, and we observe the spectrum of the sun, where light of many wavelengths are separated on the screen. We see the 1st order appearance of the Halpha line (656.28 nm) at a position 11.5 cm away from the central maximum. a) How many lines per centimeter does this diffraction grating have? N = ________________________ b) How far (in cm) from the central maximum would the first-order H-gamma line (434.0472 nm) appear? ________________________ c) What is the angular separation between the second-order H-alpha and H-gamma lines? ________________________ d) Find the wavelength(s) of visible light that would have maxima at a point on the screen 37.4 cm from the central maximum?A thin film of oil (n 1.45) is floating on a water surface (n = 1.33) and is illuminated from above by monochromatic light (A = 590 nm). For what thickness of the oil film will the reflected light be bright? (in nm) = OA: 48.3 OB: 60.4 OC: 75.5 OD: 94.4 OE: 118.0 OF: 147.5 OG: 184.4 OH: 230.5
- b. Coherent light of wavelength 590 nm passes through a thin single slit and a diffraction pattern is observed at a screen 1.5 m from the slits. The first dark fringe is observed at 2.00 mm from the center (i) What is the width of the slit? (ii) What is the location of the next symmetrical pair of dark fringes from the centre?Light with a single wavelength of 1 = 461 nm goes through two narrow slits. The light strikes a screen which is a distance L = 2.77 m away. The resulting light intensity pattern is shown below. Each slit has a width of "a", and the separation of the slits is "d". a L a. The interference pattern has its 4-th dark spot (destructive interference) at a distance of y4 = 3.59 mm from the central bright spot. What is the separation "d" between the two slits? Convert your answer to millimeters. (Be careful. The first dark spot is m = 0!) mm b. What is the angle, 0, to this 4-th dark spot of the interference pattern? degrees c. If the 4-th dark spot of the interference pattern is at the same location of the first dark spot of the diffraction pattern, what is the width of each slit "a"? Convert your answer to millimeters. mm be