GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In AM waves what remains constant?
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Frequency
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Amplitude
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Wavelength
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Crests
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Explanation:
Detailed explanation-1: -The carrier frequency remains constant during AM.
Detailed explanation-2: -In Amplitude Modulation, the carrier waves amplitude changes, and message signals are changed over them. The frequency of the carrier persists constant, and the phase of carrier waves also persists constant.
Detailed explanation-3: -The frequency band used for AM radio is about 550 to 1720 kHz. This is the range of carrier frequencies available. The information transmitted is music and talk which falls in the audio spectrum.
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