Math Problem Statement
Calculate the angle of incident of beam radiation or surface located at Abuja at 130solar time on march 16,1996, if the surface is tilted 45 degree Celsius from the horizontal and pointed 30 degree west of south. Take one degree =60mins.
Solution
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Math Problem Analysis
Mathematical Concepts
Trigonometry
Solar Geometry
Angle of Incidence
Formulas
Declination angle: δ = 23.45° × sin(360° / 365 × (n - 81))
Solar hour angle: H = (Solar time - 12) × 15°
Solar zenith angle: cos(θ_z) = sin(φ) sin(δ) + cos(φ) cos(δ) cos(H)
Angle of incidence: cos(θ) = cos(θ_z) cos(β) + sin(θ_z) sin(β) cos(γ)
Theorems
Sine and Cosine Laws
Geometric Angle of Incidence
Suitable Grade Level
Grades 11-12
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