Question:
The amount of energy received in unit time on unit area perpendicular to the direction of radiation is called
The amount of energy received in unit time on unit area perpendicular to the direction of radiation is called
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The "Solar Constant" isn't perfectly constant, but it's the standard benchmark for incoming solar power.
Updated On: May 5, 2026
- Solar radiation
- Diffused radiation
- Solar constant
- Heat constant
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The Correct Option is C
Solution and Explanation
Step 1: Concept
This definition refers to the intensity of solar energy reaching the Earth's upper atmosphere.
Step 2: Meaning
It is measured at the mean distance between the Earth and the Sun.
Step 3: Analysis
The value is approximately $1.361$ $kW/m^2$ and is a fundamental value in solar energy studies.
Step 4: Conclusion
The specific term for this value is the Solar constant.
Final Answer: (C)
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