Radio-frequency Identification (RFID) technology

Choose the Correct Answer

Correct Answer : Option c

Explanation
Statement 1 is correct: RFID technology operates using radio waves that can penetrate various materials. RFID systems function across different frequency bands, each tailored to specific uses.
Low Frequency (LF) RFID, operating around 125 kHz, has a short read range of nearly 10 centimeters and is commonly used for applications like access control and livestock tracking.
High Frequency (HF) RFID, typically operating at 13.56 MHz, offers a moderate read range of 10 centimeters to 1 meter and is widely used in ticketing, payment systems, and data transfer.
Ultra-High Frequency (UHF) RFID, working between 860 to 960 MHz, provides longer read ranges and faster data transmission but is more prone to interference from liquids and metals. UHF is ideal for applications requiring quick and bulk tag reading, such as supply chain management.

Statement 2 is correct: Unlike traditional barcode systems, which necessitate a direct line of sight between the scanner and the code, RFID tags can be read without a direct line of sight, even when they are embedded within or obscured by materials like cardboard, plastic, or certain metals. This non-reliance on line of sight enhances the flexibility and efficiency of RFID systems in applications such as inventory management and asset tracking.