In case of electrical accidents, prioritize safety by cutting off power and seeking immediate professional help.
Solutions to electrical hazards include:
• Disconnect power supply immediately before attempting a rescue.
• Use insulated tools and gloves to avoid direct contact with electricity.
• Perform CPR if the person is unresponsive and ensure medical help is called.
• Maintain a safe distance from high voltage wires.
• Regularly inspect and maintain electrical equipment to prevent accidents.
| 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 |