Consider the following:1. Bluetooth device2. Cordless phone3. Microwave oven4. Wi-Fi deviceWhich of the above can operate between 2.4 and 2.5 GHz range of radio frequency band?
✓ Correct answer: d) 1, 2, 3 and 4
ExplanationThe 2.4 GHz and 2.5 GHz ISM band (Industrial, Scientific, and Medical) is a part of the radio frequency spectrum commonly used for short-range communication technologies.This range is globally available for unlicensed use, making it ideal for a variety of wireless communication applications.Bluetooth devices, cordless phones, microwave ovens, Wi-Fi baby monitors, wireless cameras, and RFID systems operate in the 2.4 to 2.5 GHz range of the radio frequency band.While it allows a variety of devices to operate within it, managing interference is a key challenge in environments with multiple devices using the same frequency.This range is commonly used due to its balance between range and data capacity, making it suitable for short- range communication and other applications.87
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