Plane Angle vs Solid Angle | Radian and Steradian
Автор: Wahid Amin
Загружено: 2025-12-28
Просмотров: 7
Описание:
In this video, I explain Plane Angle, Radian, and Steradian (Solid Angle) step by step with easy language and handwritten diagrams.
🔹 Topics covered:
Plane Angle
• Definition of Plane Angle
• Formula θ = s / r
• What is 1 radian
• Why 1 revolution = 2π radians
• Degree to radian conversion
• Standard angles (30°, 45°, 60°, 90°, 180°, 360°)
Steradian (Solid Angle)
• What is Solid Angle
• Definition of Steradian
• Formula Ω = A / r²
• Meaning of 1 steradian
• Relation between sphere and steradian
• Why total solid angle of a sphere = 4π sr
📘 This lecture is very useful for:
• Matric & FSC students
• O Level & A Level
• Entry test preparation
• Physics & Mathematics basics
Easy explanation with diagrams for concept clarity.
📌 Watch till the end for full understanding of radian and steradian.
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