The thicknessof the fringe
where L is length of the plate
t is thickness of the paper
the fringe width
m
if thickness is increased, the denominator becomes twice, hence fringe width becomes half,
Suppose the two glass plates in are two microscope slide l=12.0cm long. At one end they...
Thin film examples Suppose the two glass plates in the figure are two microscope slides 10 cm long. They are in contact at one end and are separated by a piece of paper 0.020 mm thick at the other end. What is the spacing of the interference fringes seen by reflection? Is the fringe at the line of contact bright or dark? Assume monochromatic light with λ-500 nm. λο 500 nm h - 0.020 mm 1 10.0 cm
6. [15 ptsJTwo glass plates are 15.0 cm long. At one end they are in contact, at the other end they are separated by 0.03 mm. Assume normal incidence with a monochromatic light (wavelength in air is 50nm) a) Is the fringe at the line of contact bright or dark? Explain your answer. What is the spacing of the bright b) If the glass plates have n 1.6 and space between plates contains water (n 1.33). Is the fringe at...
Consider a thin film of silicon grease (n=1.5) between two flat microscope slides having length L=10cm. The top slide is made of plastic (n=1.4) and the bottom slide is made of glass (n=1.6). at one end the slides are in contact and at the other end they are separated by a wire that has width h=.02mm. Assume we are using a monochromatic light source of wavelength =500nm. what is the spacing between the dark fringes?
Thanks optically flat glass plates (n-1.5) are in contact along one end f paper that is 6 x 10 cm thick and are separated along the other and by a sheet o The top plate is illuminated by monochromatic lig number of white parallel bands crossing the top plate t 2 546.1 nm). Calculate the
Two glass microscope slides are stacked on top of each other. A piece of Scotch tape is stuck along the edge of one slide to create a thin wedge of air between them. A laser with wavelength 545 nm shining on the stack produces a pattern of interference fringes, with 20.0 fringes per centimeter. What is the angle, in degrees, of the wedge?
A hair is placed at one edge between two flat glass plates 10.7 cm long. When this arrangement is illuminated with 619 nm light, 132 bands are counted, starting at the point of contact of the two plates. How thick is the hair? Answer in units of m. I've tried 4.054E5 and got it wrong
Two glass plates are separated by fine wires with diameters d1 = 0.0500 mm and d2 = 0.0520 mm, as indicated in the figure(Figure 1) . The wires are parallel and separated by a distance of 7.00 cm. If monochromatic light with λ = 569 nm is incident from above, what is the distance (in cm) between adjacent dark bands in the reflected light? (Consider interference only between light reflected from the bottom surface of the upper plate and light...
Two flat panes of glass (80 cm long, 15 cm wide, 4 mm thick) are on your lab table directly under a nearly monochromatic (wavelength 650 nm) light source. At one end one pane is resting on the other; at their other ends they are separated by a single thickness of paper. You notice that the light is strongly reflected only in multiple bands occurring one every 2.5 cm. How thick. is the paper?
Question 5: How would dust and oil on the glass plates affect the results? EXPERIMENT 10 THIN FILM INTERFERENCE Light from a monochromatic source is shined downward on two glass plates that are separated at one end by a hair. Light that is reflected from the top and bottom surfaces of the wedge-shaped thin film of air undergoes interference, and a series of dark and light lines are seen. By counting the number of dark or light lines over a...
Suppose you have a glass tube with metal plates at the ends, which are connected to wires leading outside the tube. The air has been removed from the interior of the tube leaving a very good vacuum. There is a positively charged particle initially sitting at rest between the two plates. See the accurate diagram below. A positively charged rod is brought in contact with the left hand wire. What, if anything, happens to the charged particle? Explain your answer...