The wavelength of a monochromatic source is measured with a Michelson interferometer. An interference pattern is viewed on the screen. When the movable mirror moves d = 0.1 mm, 462 fringes move past a fixed point on the screen. What is the wavelength of the light in nm?
A: 78 B: 104 C: 138 D: 184 E: 245 F: 325 G: 433 H: 576
The wavelength of a monochromatic source is measured with a Michelson interferometer. An interference pattern is...
An important experimental device that uses interference is the Michelson interferometer. Michelson interferometers are used to make precise measurements of wavelengths and of very small distances. A Michelson interferometer takes monochromatic light from a single source and divides it into two waves that follow different paths. Interference occurs when the two light waves are recombined. The figure below shows the principal components of a Michelson interferometer. A ray of light from a monochromatic source A strikes the beam splitter C,...
I need help with this Electromagnetic Waves homework (VIII.2) Michelson interferometer Consider a Michelson interferometer as shown in the figure. Two mirrors, MI and M2, are located at distances L and L2 L away from the center of the beam splitter. M has a slight misalignment angle 0 from the horizontal direction. A plane wave is incident from the left. (a) Calculate the spacing of the interference fringes on the screen. M1 M2 Source Beam splitter (b) If M2 is...
5. You illuminate a Michelson interferometer with a helium-neon laser. The interference pattern is uniform - there are no stripes or rings. The laser has a wavelength of 632.8 nm. You move the mirror on the translation stage until the intensity of the interferometer output is maximum. You measure that the output intensity is 10 = 0.80 mW/cm . Then, you move the mirror on the translation stage by some additional amount Ar. You observe that the output intensity drops...
An evacuated cell of length 10 cm is placed in one arm of a Michelson interferometer using a 589-nm light source. When methane gas is allowed to enter the cell, the interference pattern is observed to shift 75 fringes as the pressure increases to atmospheric value. Calculate the index of refraction of methane. If we remove the evacuated cell then, a shift of 50 fringes will correspond to displacing the movable mirror of the interferometer by what distance?
Find out the interference pattern measured at the output port of the Michelson interferometer when a single-frequency laser beam is applied.
mirrors path 2 incoming light path 1 half-silvered mirror interference pattern 1. Shown above is a simplified diagram of a Michelson interferometer. Imagine placing a flat plate of transparent material in path 2 and rotating it slightly with respect to the beam. If the thickness of the plate is known to be d show that the rotated thickness is where 45 is the cos φ small angle of rotation. Using this change in the path length, find an expression for...
PHYSICS - GEOMETRIC PHYSICS - MICHELSON INTERFEROMETER From a textbook chapter entitled: "Interference" QUESTION: If one arm of a Michelson interferometer contains a tube 2.5 cm long that is first evacuated and then slowly filled with air (n=1.0003), how many fringes will cross the center? Assume light of 600 nm wavelength. Please highlight any relevant equations, and show a step-by-step worked out solution. Thanks
A Michelson interferometer is illuminated with 500 nm light. One of the mirrors is moved so that 1000 fringes move past the crosshairs of the observing telescope. How much has the mirror moved?
A plane monochromatic light wave is incident on a double slit and the interference pattern is shown on a screen. As the slit separation increases, what happens to the separation between the interference fringes on the screen? More information is required. It remains the same. It decreases. It may increase or decrease, depending on the wavelength of light. It increases.
A plane monochromatic light wave is incident on a double slit and the interference pattern is shown on a screen. As the viewing screen is moved away from the double slit, what happens to the separation between the interference fringes on the screen? It may increase or decrease, depending on the wavelength of light. It increases. It remains the same. More information is required. It decreases.