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Calculate the heat energy received by 5 ...

Calculate the heat energy received by `5 m^2` area on the Earth's surface in `1` minute, assuming that `47 %` of the solar energy strikes the Earth's surface.

Text Solution

Verified by Experts

The correct Answer is:
`197.4 kJ`
Heat energy received = 47 % of solar constant `xx` area `xx` time`
=`(47//100)(1.4 kW//m^2)(5 m^2)(1 xx 60 s)`
=`197.4 kJ`.
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How much solar energy is received by 1 m^2 area on the Earth in 5 minutes, assuming that 47 % of the solar energy strikes the Earth's surface ?

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Knowledge Check

  • The biggest source of energy of Earth's surface is

    A
    Biomass
    B
    Solar radiations
    C
    Tides
    D
    Winds

  • The energy that can harness heat stored below the earth's surface is known as

    A
    Thermal energy
    B
    Nuclear energy
    C
    Tidal energy
    D
    Geo-thermal energy

  • The kinetic energy needed to project a body of mass m from the earth's surface to infinity is

    A
    `1/4mgR`
    B
    `1/2mgR`
    C
    `mgR`
    D
    `2mgR`

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