See image — Isomerism and Stereochemistry Chemistry Question

💡 Solution & Explanation

# Solution: Light Polarization through a Nicol Prism **Step 1: Understand what a Nicol prism does** A Nicol prism is an optical device made from calcite crystal that acts as a polarizer. It selectively transmits light oscillations in only one direction while blocking oscillations in perpendicular directions. **Step 2: Analyze the condition given** The problem states: "all oscillations occur only in one plane" after light passes through the prism. This means the electric field vector of light vibrates in a single, fixed plane. **Step 3: Define the terminology** - **Plane polarized light** (or **Polarized light**): Light in which electric field oscillations are restricted to a single plane - **Non-polarized light**: Light with random oscillations in all perpendicular directions - **Optical light**: General term for visible light (not specific to polarization state) **Step 4: Match the definition to options** Since oscillations occur in "only one plane," this is the defining characteristic of plane polarized light. Options (2) and (3) both refer to this concept, with option (2) being the more precise and commonly used terminology. **Answer: (2) Plane polarized light** This is the standard term used in optics to describe light whose electric field oscillates in a single plane perpendicular to the direction of propagation.