virtual-telescope-lab-report

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?

Calculate the speed of light in the Foucault Method if the frequency of mirror rotation CW is 1450 rev/sec, frequency of CCW rotation is 1461 rev/s. Take the distance between the rotating mirror and fixed mirror to be 10.417m. The distance between the lens L2 and the rotating mirror is 55.1cm. The image displacement in the telescope when the mirror is going CW is 9.2mm and the image displacement when the mirror is rotating CCW is 8.57mm. The distance between two lenses L1 and L2 is 25.9cm. Focal length of L1 is 48mm.

answer the following question. topic: oscilloscope 1. What is/are the function of the horizontal sensitivity (TIME/DIV)?  2.What is/are the function of the vertical sensitivity (V/DIV)?  3.. What are the functions of Oscilloscope? Function Generator?

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

A grating has 1000 lines/mm of width. How wide must the grating be in order to resolve the mode structure of a HeNe laser beam of wavelength 633 nm? The frequency difference between the modes is 450 MHz.

What is the Jones Matrix of a quarter wave plate that is 45° rotated to the horizontal direction? Explain every term.

A polarized electromagnetic wave is shown below (with the electric componenet downwards and the magnetic component oriented out of the page). A wire gird polarizer is placed on each side of the electromagnetic wave. To the left, the polarizer is oreinted vertically (up and down) and to the right, the polarizer is oriented horizontally (into/out of the page). Straight wire antenna are oriented vertically (up and down) behind each polarizer as detectors. Antenna A Antenna B B Part A Which Antennale (if any) will detect the electromagnetic wave? O B O A and B O No signal detected оооо

I need the answer as soon as possible

A parabolic reflector focuses electromagnetic waves into a beam as shown in the figure. The electromagnetic radiation is pulsed, with a pulse frequency of 16.0 GHz, and the duration of each pulse is t = 1.00 ns. The face of the reflector has a radius of 5.00 cm, and the average power during each pulse is 20.0 kW. (Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) (a) What is the wavelength (in cm) of these electromagnetic waves? cm (b) What is the total energy (in µJ) contained in each pulse? (c) Compute the average energy density (in mJ/m³) inside each pulse. mJ/m³ (d) Determine the amplitude of the electric field (in kV/m) and magnetic field (in µT) in these electromagnetic waves. Emax kV/m %3D B max HT (e) Assuming that this pulsed beam strikes an absorbing surface, compute the force (in uN) exerted on the surface during the 1.00 ns duration of each pulse. µN

NO AI PLEASE

need answer to part (d) only