A Michelson interferometer is illuminated with monochromatic light (i.e. light of a single wavelength, 2x). One its mirrors is then moved 2.53 x 10-5 m, and it is observed that 92 interference fringe-pairs (i.e. bright and dark regions) pass by in the process. Determine the wavelength of the incident beam?

2. A phase retardation plate ade by quartz has thickness 0.1436 mm. For what wavelength in the visible range (400- 750nm) it will act as (i) quarter-wave plate & (ii) half wave plate? Given µ,= 1.5443 and pH=1.5533. [Ans: 738.6nm, 574.4 nm, 470 nm for QWP and 517 nm for HWP.] [CO3]

A flat luminaire with dimensions 1.2 x 0.2m is mounted in a ceiling. The fixture has an opal plastic plate at the bottom, and can be considered ideal diffused. On a wall in the room there is a picture with dimensions 0.4m x 0.4m, as shown in the figure. The measurements apply from the midpoint of fixture and picture. The luminous flux of the light source is 6200 lm. The luminous intensity normally from the bottom of the luminaire is 1400 cd. a) Determine the luminous flux going out of the luminaire. What is the luminaire's efficiency?

3) Solve the cutoff frequency for the first mode and second mode of WR975 Wave guide TABLE 7.1 Some Standard Rectangular Waveguides Waveguide de signation a (in) b (in) t (in) fe, (GHz) Frequency range (GHz) WR975 9.750 4.875 0.125 0.605 0.75-1.12 WR650 6.500 3.250 0.080 0.908 1.12–1.70 WR430 4.300 2.150 0.080 1.375 1.70-2.60 WR284 2.840 1.340 0.080 2.08 2.60-3.95 WR187 1.872 0.872 0.064 3.16 3.95-5.85 WR137 1.372 0.622 0.064 4.29 5.85-8.20 WR90 0.900 0.450 0.050 6.56 8.2–12.4 WR62 0.622 0.311 0.040 9.49 12.4–18

What is Rayleigh scattering?

Which of the following statements is not true about the linear polarization technique? a) Measurements begin at-20 mV from OCP and end around +100 mV from OCP b) The slope of the plot is AE/AC is given in volts/amperes or mV/mA c) This technique can be used to determine very low rate of corrosion d) It can be used to monitor corrosion rate in process plant

What will be frequency for an em wave of wavelength 2.44 mm?

Imagine a two-dimensional system in which a sinusoidal waveform is excited at the exact center of a circular plate. The standing wave pattern is established when the excited wave two-dimensionalwaveforms for a stable equilibrium pattern of constructive and destructive interference with the reflected waves from the edge of the circular plate. Draw what you expect the standing wave patterns to look like in this two-dimensional system for increasing resonant harmonics, n. Explain what characteristics of the oscillating plate affect the value of those resonancefrequencies, and what geometric properties of the plate affect the patterns.

If the effective height of an areal is 1/150th of the wavelength, then estimate its radiation resistance. I need to submit the assignment tomorrow. Please help. Will rate thumbs up.

Please help with answering this question, please write clearly and explain clearly please, thanks.