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Energy content of atmospheric noise
- a)does not depend on frequency
- b)decreases as frequency is increased
- c)increases as frequency is increased
- d)either (a) or (c) depending on the temperature
Correct answer is option 'B'. Can you explain this answer?
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Energy content of atmospheric noisea)does not depend on frequencyb)dec...
Atmospheric noise decreases as frequency is increased.
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Energy content of atmospheric noisea)does not depend on frequencyb)dec...
Energy Content of Atmospheric Noise
Explanation:
Energy content of atmospheric noise decreases as frequency is increased due to the nature of atmospheric noise sources. Here is a detailed explanation:
Source of Atmospheric Noise:
- Atmospheric noise is generated by natural sources such as lightning discharges, cosmic radiation, and other atmospheric disturbances.
Frequency Dependence:
- At lower frequencies, atmospheric noise is mainly dominated by sources like lightning discharges, which have a relatively constant power level.
- As frequency increases, the contribution from lightning discharges decreases, while other sources like cosmic radiation become more dominant.
Power Distribution:
- The power spectral density of atmospheric noise decreases with increasing frequency due to the decreasing contribution from sources like lightning.
- In other words, the energy content of atmospheric noise decreases as frequency is increased.
Temperature:
- While the energy content of atmospheric noise does depend on temperature to some extent, the frequency dependence is more significant in determining the overall power distribution.
Therefore, the correct answer to the question is option B, which states that the energy content of atmospheric noise decreases as frequency is increased.
Explanation:
Energy content of atmospheric noise decreases as frequency is increased due to the nature of atmospheric noise sources. Here is a detailed explanation:
Source of Atmospheric Noise:
- Atmospheric noise is generated by natural sources such as lightning discharges, cosmic radiation, and other atmospheric disturbances.
Frequency Dependence:
- At lower frequencies, atmospheric noise is mainly dominated by sources like lightning discharges, which have a relatively constant power level.
- As frequency increases, the contribution from lightning discharges decreases, while other sources like cosmic radiation become more dominant.
Power Distribution:
- The power spectral density of atmospheric noise decreases with increasing frequency due to the decreasing contribution from sources like lightning.
- In other words, the energy content of atmospheric noise decreases as frequency is increased.
Temperature:
- While the energy content of atmospheric noise does depend on temperature to some extent, the frequency dependence is more significant in determining the overall power distribution.
Therefore, the correct answer to the question is option B, which states that the energy content of atmospheric noise decreases as frequency is increased.
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Energy content of atmospheric noisea)does not depend on frequencyb)decreases as frequency is increasedc)increases as frequency is increasedd)either (a) or (c) depending on the temperatureCorrect answer is option 'B'. Can you explain this answer?
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