TE Wave - Edubirdie

University:
Santa Fe College
Course:
ETS 2527C | Electromechanical Components and Mechanisms
Academic year:

2024
Views:

322

Pages:

5
Author:

Jabin F.

TE-WAVE Wave is traveling from rarer to denser medium (m₁ < m₂) => θᵢ > θₜ (E₀ᵣ / E₀ᵢ) = (cosθᵢ - (m₂/m₁) * sinθᵢ) / (cosθᵢ + (m₂/m₁) * sinθᵢ) = -sin(θᵢ - θₜ) / sin(θᵢ + θₜ) θᵢ -> angle of incidence θₜ -> angle of transmission (refraction) 0 ≤ (θᵢ + θₜ) ≤ π Question: An E.M. wave is traveling from air to glass. Find the change in phase of the reflected magnetic field, if 𝐸 is ⊥ to the plane of incidence. Options: (a) π/2 (b) 0° (c) π (d) π/2 TE-WAVE Wave is traveling from denser to rarer medium (m₁ > m₂) => θᵢ < θₜ (E₀ᵣ / E₀ᵢ) = +ve But wave is traveling from glass to air: (a) π/2 (b) 0° (c) π (d) π/2 Graph (Rare to denser medium): [Insert a graph showing the relationship between θᵢ and ϕ] Denser to rare: ϕ₁(E₁) = 0 Rare to denser: ϕ₁(H₁) = π → E-field is ⊥ to plane of incidence ques.16 page-83 μ₁ = μ₂ ε₂ = 3ε₁ η = √(μγ εγ) n₂ = √3 n₁ tan θB = (n₂ / m₁) = √3 θB = 60° = θi (incident) so option-(a) P.P. -> perpendicular

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