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Science and Technology › Emerging TechXCommunication

Science and Technology › Emerging TechXCommunication

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Consider the following :
1. Bluetooth device
2. Cordless phone
3. Microwave oven
4. Wi-Fi device
Which of the above can operate between 2-4 and 2-5 GHz range of radio frequency band ?

Options

(a)

1 and 2 only

(b)

3 and 4 only

(c)

1,2 and 4 only

(d)

1,2,3 and 4

Answer

(D)