Is the Calculation of a Radar Antenna's Height at 349 Meters Accurate?

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SUMMARY

The calculation of a radar antenna's height at 349 meters is confirmed as accurate based on the provided scenario involving a radar antenna located atop a cliff. The antenna operates at a wavelength of 400 meters, and the angle ABF is measured at 35 degrees. The method used in the attached PDF solution aligns with established principles of radar wave reflection and geometry. Therefore, the teacher's assertion of the height being 349 meters is validated, and the student's confidence in their solution is substantiated.

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  • Understanding of radar wave principles and reflection
  • Basic knowledge of trigonometry, specifically angle calculations
  • Familiarity with electromagnetic wave properties
  • Ability to interpret and analyze geometric diagrams
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Students in physics or engineering fields, radar system designers, and anyone involved in antenna technology and electromagnetic wave analysis will benefit from this discussion.

kirpal_06391
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Q. A radar antenna is located atop a high cliff on the edge of a lake operates at a wavelength of 400m. A parallel beam of electromagnetic wave is received by the antenna at E. One ray directly comes to E and other along the path ABE (after reflection at the water surface) the first minimum is recorded when the angle ABF = 35˚. Find the height of the cliff.

Solution has been attached as PDF file.

Now, my real question is, that whether my solution is correct or not, as my teacher has declared it incorrect but I have VERY STRONG feeling that its correct.

Answer given by my teacher is 349 meters.
 

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Er.. opinions required before Monday
 
On a quick look, the method and answer in the pdf file seem fine.
 
Well I need either perfectly correct or incorrect type opinion b'coz I'm going to challenge my teacher on that basis
 

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