ایف ایم ، اے ایم ریڈیو ، ٹیلی ویژن اور بے تار فون ٹرانسمیشن کے لئے _____ استعمال کرتے ہیں۔
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A. None of these
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B. Microwaves
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C. Infrared waves
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D. Radio waves
Explanation
FM, AM radios, televisions, and cordless phones commonly use radio waves for wireless communication and signal transmission.
Radio waves can travel long distances and are ideal for broadcasting audio and video signals.
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A. frequent modulation
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B. Frequency Method
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C. Frequency Modulation
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D. Frequency molecules
Explanation
- FM stands for Frequency Modulation
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- Unlike AM, in an FM radio broadcast, the information is transmitted in variations in the carrier wave frequency.
- Edwin Armstrong introduce FM on December 26, 1933.
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