What is the bending of beam of light around corners of obstacle is called?

Options

A. Reflection
B. Diffraction
C. Refraction
D. Interference

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the phenomenon that describes the bending of light around the corners of an obstacle.

2. **Identifying the Phenomenon**: When light encounters an obstacle or passes through a small aperture, it does not travel in a straight line but instead bends around the edges of the obstacle. This behavior is not typical of particles and is indicative of the wave nature of light.

3. **Defining the Term**: The bending of light around corners is specifically referred to as "Diffraction." This term is used to describe the phenomenon where waves (including light waves) spread out after passing through a narrow opening or around an obstacle.

4. **Explaining the Concept**: According to Huygens' Principle, every point on a wavefront can be considered a source of secondary wavelets. When these wavelets interfere with each other, they can create patterns of constructive and destructive interference, leading to the observed bending of light.

5. **Conclusion**: Thus, the correct answer to the question is that the bending of a beam of light around corners of an obstacle is called "Diffraction."

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