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Multiple Choice Questions

The value of solar constant is ........

Geography and Environment (UPPCS) World climates

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The value of solar constant is :

4.5 calories per cm square per minute

2 calories per cm square per minute

1.5 calories per cm square per minute

1 calories per cm square per minute

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Explanation:

The approximate average value cited, 1.3608 ± 0.0005 kW/m², which is 81.65 kJ/m² per minute, is equivalent to approximately 1.951 calories per minute per square centimeter, or 1.951 langleys per minute. Solar output is nearly, but not quite, constant. Hence option 2nd is correct.