Question

Which of the following is/ARE considered "Impossible triangle"?

• A. Kanizsa triangle
• B. Linear Perspective
• C. Barmoda triangle
• D. Color triangle

Hint:

Impossible objects, like the Penrose Triangle and Penrose Stairs, are common examples in questions about optical illusions and visual perception. They appear to be 3D but cannot be constructed in reality.

Answer 1

The Correct Option is B

Step 1: Understanding the Question:
The question asks to identify which of the given options is known as an "Impossible triangle." This refers to a type of optical illusion known as an impossible object.
Step 2: Detailed Explanation:

• (A) Kanizsa triangle: This is an optical illusion that creates illusory contours, suggesting a triangle that is not actually there. It's an illusion of perception, but not an impossible object.
  
• (B) Penrose triangle: This is the quintessential "impossible triangle" or "impossible tribar." It is a two-dimensional drawing of an object that cannot exist in three-dimensional space. It was first created by the Swedish artist Oscar Reutersvärd and later independently devised and popularized by Lionel and Roger Penrose.
  
• (C) Barmoda triangle: This appears to be a misspelling or a distractor term. It does not correspond to any known geometric figure or optical illusion.
  
• (D) Color triangle: This is a term from color theory, used to represent the relationships between colors, and has nothing to do with impossible objects.
  

Step 3: Final Answer:
The Penrose triangle is the correct term for the "Impossible triangle."