Common housekeeping tasks in a retail store include:
1. Cleaning floors and shelves: Regular cleaning to maintain a neat and pleasant environment for customers.
2. Organizing products: Ensuring that products are properly stocked, labeled, and arranged for easy customer access.
3. Maintaining store displays: Updating product displays regularly to keep the store visually appealing.
4. Waste management: Emptying trash bins and ensuring the store remains clean and hygienic.
| 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 |