he "n" layer refraction wave is faster than the direct wave, but at some distance it is slower than the "n + 1" layer refraction (hint: take a

TV uses satellites that hover above one point over our planet as the rest rotates. The satellites give out 10 GHz EM waves that a dish (with a diameter of 40cm) on a house's roof absorbs. The dishes are like circular apertures to collect signals. These dishes have to distinguish signals from two adjacent satellites to get good signal. Draw and label a diagram, show all work, and explain throughly using physics equations: What is the maximum amount of satellites that can be used for TV ? Earth radius = 6.38 x 106 m Earth mass = 6 x 1024 kg

Find the largest wavelength (in nm) of light falling on double slits separated by 7.5o µm for which there is a second-order maximum. nm Is this in the visible part of the spectrum? Yes No

Below, the most intense peaks of x-ray diffraction patterns obtained from two samples the same material. What could have caused the differences in the XRD peaks give below? Explain? A В 20 (Degrees) Intensity (arbitrary units)

Q3: If at -Vụ, and y is a wave function in one dimension. Prove 2m дх2 that (p) = S dxy* (-ih

Note :- Answer all questions Q1/Determine the expected diffraction angle for the second -order reflection from the (200) set of planes for Simple Cubic crystal when monochromatic radiation of wavelength ( 0.122 nm) and radius (0.144 nm) are used ?

Q4: For the geometry below, assume the carrier frequency is 900 MHz Tx Rx 50 m| 50 m 500 m 500 m a. Determine the height of the obstacle required to induce 23 dB diffraction loss. Given, b. Discuss two factors impact the amount of diffraction loss?

Q1) A 10 GHz uniform plane wave is propagating along the +z - direction, in a material such that & = 81, µr = 1 and σ = 2 mho/m. a) (20 pts.) Find the values of y, a and B. b) (10 pts.) Find the intrinsic impedance. c) (20 pts.) Write the phasor form of electric and magnetic fields, if the amplitude of the electric field intensity is 0.5 V/m.

What relationship does the slit width have with the diffraction envelope in a single slit experiment? Is there a correlation between the slit width and the maxima (distance between side orders)-- Is there any theory behind it? Explain.

To observe interference in a thin film, why must we consider a film that is not very thick (with a thickness of only a few wavelengths)? What happens if we exceed that thickness? Explain.