How much solar energy will be received by 1 square metre area on earth's atmosphere in one hour if the Solar constant were 1.4 Kilowatt per square metre? (assume the rays are falling perpendicular to the Earth's atmosphere)

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Q. How much solar energy will be received by 125 meter square area on earth’s surface in eight hours if the solar constant is 1.4 kilowatt per square meter?

Q. The solar constant is the amount of heat energy received per second per unit area of a perfectly black surface placed at a mean distance of the Earth from the Sun, in the absence of Earths atmosphere, the surface being held perpendicular to the direction of Suns rays. Its value is

1388 W / m^{2}

.If the solar constant for the earth is

s

. The surface temperature of the sun is

T K

D

is the diameter of the Sun,

R

is the mean distance of the Earth from the Sun. The sun subtends a small angle

θ

at the earth. Then correct options is/are :

If the solar constant is $1.4 k W / m^{2}$ , then the solar energy received by 1 $m^{2}$ area in one hour is :
(a) 5040 j (b) 504.0 kj (c) 5040 kj (d) 5.04 kj

The average amount of Solar energy reaching the upper atmosphere of earth per second on an area of $1 m^{2}$ is called ___.

The energy flux of sunlight reaching the surface of the earth is 1.388 × 10³ W/m². How many photons (nearly) per square metre are incident on the Earth per second? Assume that the photons in the sunlight have an average wavelength of 550 nm.

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