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Grade 12th passBotany

solar constant is _____ cal/cm2 min-1
  1. 2
  2. 6
  3. 4
  4. 8

Profile image of raghav
11 Years agoGrade 12th pass
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1 Answer

Profile image of Apoorva Arora
11 Years ago
The correct option is 1.
The solar constant, a measure of flux density, is the amount of incoming solar electromagnetic radiation per unit area that would be incident on a plane perpendicular to the rays, at a distance of one astronomical unit.