Question 1
A transparent sheet has different colored sections. The sheet is folded diagonally from top-left to bottom-right.
Looking through the folded sheet, what color pattern do you see?
**Note:** Dashed lines show folds. Colors are semi-transparent to show mixing effect.
Step-by-Step Solution:
Step 1 - Understanding Color Transparency:
- When colored transparent sheets overlap, colors COMBINE (additive/subtractive mixing)
- Red transparent sheet: allows only red light through
- Blue transparent sheet: allows only blue light through
- Overlap: both red AND blue pass through → appears PURPLE/MAGENTA
Step 2 - Fold Analysis:
- Diagonal fold from top-left to bottom-right
- Top-left triangle (Red) folds over bottom-right triangle (Blue)
- The fold line creates perfect alignment of the two triangular halves
Step 3 - Visual Effect:
- Where the sheet is single layer: original color visible
- Where the sheet is double layer (overlap region): colors mix
- The entire bottom-right triangle becomes double-layered
- Therefore, the entire bottom-right triangle appears PURPLE
Step 4 - What You See Through Folded Sheet:
- Top-left region: Empty (folded away) or maybe just single layer? Actually top-left is now empty
- Bottom-right region: Purple (Red + Blue mix)
- Along the diagonal fold line: Sharp color boundary
Step 5 - Final Answer:
- Through the folded transparent sheet: A purple region appears along the diagonal overlap