1. (i) Tips for Proper Storage of a Silk Scarf:
1. Store in a Cool, Dry Place: Keep the silk scarf in a cool and dry area, away from direct sunlight, to avoid fading and deterioration.
2. Use a Silk Bag or Box: Store the scarf in a silk or cotton bag, or a box with soft lining to protect it from dust and moisture.
3. Avoid Hanging: Do not hang the silk scarf as it may stretch and lose its shape.
4. Roll Instead of Folding: Rolling the scarf gently prevents creases and helps maintain its original form.
2. (ii) Finishing Agent for Silk Scarf: Use a mild starch solution to bring shine and a crisp look to the scarf without damaging the delicate fibers.
| Case No. | Lens | Focal Length | Object Distance |
|---|---|---|---|
| 1 | \(A\) | 50 cm | 25 cm |
| 2 | B | 20 cm | 60 cm |
| 3 | C | 15 cm | 30 cm |