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This certain phenomenon is known as what we call the refraction of light.
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It sometimes appears that when light is travelling obliquely from one medium to another medium, the direction of the propagation of light in the second medium somehow changes. The refraction of light is explained briefly using the straight-line propagation of light in this article. This discussion about the true nature of light continued for years till a modern quantum theory of light came in which light is neither a become slightly wave nor a ‘particle’ in nature – the new theory relates the particle properties of light with the wave nature of it. Sometime in the 20th century, the wave theory of light often became slightly inadequate for cases of the interaction of light with matter, and light often behaves somewhat like a stream or system of particles. Introduction to Trigonometric Ratios of a Triangleīy seeing the common optical phenomena that surround us, we may conclude that the light seems to travel in straight lines.Theorem - The lengths of tangents drawn from an external point to a circle are equal - Circles | Class 10 Maths.Introduction to Arithmetic Progressions | Class 10 Maths.Electric Potential and Potential Difference.Pythagoras Theorem and its Converse - Triangles | Class 10 Maths.Arithmetic Progression - Common difference and Nth term | Class 10 Maths.Class 10 RD Sharma Solutions- Chapter 2 Polynomials - Exercise 2.1 | Set 2.Area of a Triangle - Coordinate Geometry | Class 10 Maths.Theorem - The tangent at any point of a circle is perpendicular to the radius through the point of contact - Circles | Class 10 Maths.Euclid's Division Algorithm - Real Numbers | Class 10 Maths.Step deviation Method for Finding the Mean with Examples.Concave and Convex Mirrors - Ray Diagrams, Image Formation, Applications.Section formula – Internal and External Division | Coordinate Geometry.ISRO CS Syllabus for Scientist/Engineer Exam.ISRO CS Original Papers and Official Keys.GATE CS Original Papers and Official Keys.