Microwave Optics

Thursday, 11 October 2018

12:10 AM

Untitled picture.png Machine generated alternative text: You set up the equipment as described in part 1 of the experiment, standing waves are set up between the transmitter and receiver. Initially your receiver is positioned at a distance ot 7.7 cm trom the goniometer and recording a maximum intensity. You move it through 10 minimums in the intensity and then stop at the next maximum intensity. The receiver is now a distance of 26.8 cm trom the goniometer. What is the wavelength of the signal you nave measured? 3.82 Untitled picture.png Machine generated alternative text: Given that the signal you are detecting is an electromagnetic wave, what is its frequency? 7.8589 Note: you can enter scientific notation using "e" eg 1.34 x 107 The speed of an electromagnetic wave is the speed of light, c = 1.3G7 = 3 x 108 m}s_ use this with v = tÅ to calculate the frequency. Untitled picture.png Machine generated alternative text: When the transmitter and receiver are set up as shown in this diagram: the intensity on the receiver reads 0.99 mA_ A polarising sheet is now placed beüeen the transmitter and the receiver such that the polariser makes an angle of 370 with the slit in the transmitter. This is shown in the diagram below. What signal strength would you expect the detector to detect now? 0.64 (Note: the receiver measures the intensity in mA) You should use Malus's law to calculate the answer, 1 = 10 cos2 9. Ink Drawings  Ink Drawings Ink Drawings Ink Drawings Ink Drawings Ink Drawings    
Untitled picture.png Machine generated alternative text: When the transmitter and receiver are set up as shown in this diagram: the intensity on the receiver reads 0.99 mA_ A polarising sheet is now placed beüeen the transmitter and the receiver such that the polariser makes an angle of 370 with the slit in the transmitter. This is shown in the diagram below. What signal strength would you expect the detector to detect now? 0.64 (Note: the receiver measures the intensity in mA) You should use Malus's law to calculate the answer, 1 = 10 cos2 9. Untitled picture.png You set up the equipment tor double slit interference as shown in the diagrams below View trom on top View trom the side. It the slit separation is 14.3 cm and the wavelength ottne microwaves being used is 229 cm at what angle will you see the first order maximum? 9.22 use the tormula d sin 8 - At what angle will you detect the second order maximum? 18.7
Untitled picture.png You set up the equipment tor double slit interference as shown in the diagrams below View trom on top View trom the side. It the slit separation is 14.3 cm and the wavelength ottne microwaves being used is 229 cm at what angle will you see the first order maximum? 9.22 use the tormula d sin 8 - At what angle will you detect the second order maximum? 18.7

 

Created with Microsoft OneNote 2016.