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Out of the total solar energy, PAR is on...

Out of the total solar energy, PAR is only `ul("1-5%")`.

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`50%`
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Out of the total solar energy, PAR is only underline (1 - 5 %)

If the rate of loss of solar energy by radiation is 4.48 xx 10^(36) watt and the radius of the sun is 6.95 xx 10^5 km, what will be the temperature of the sun ?

Knowledge Check

  • Of the total incident solar radiation the proportion of PAR is :

    A
    About 70%
    B
    About 60%
    C
    Less than 50%
    D
    More than 50%

  • The ionisation energy of solid NaCl is 180 kcal, per mol. The dissolution of the solid in water in the from of ions is endothermic to the extent of 1 kcal per mol, If the solvation energies of Na^+ and Cl^- ions are in the rstio 6:5, what is the enthalpy of hydration of sodium ion:

    A
    `-85.6 kcal/mol`
    B
    `-97.5 kcal/mol`
    C
    `82.6 kcal/mol`
    D
    `+100 kcal/mol`

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