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Standard IX

Physics

Conventional Sources of Energy

What term is ...

Question

What term is known as when the solar energy fall on the Earth's atmosphere exposed perpendicularly to the rays of the Sun at the average distance between the Sun and Earth?

Solar panel

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Solar Constant

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Solar Time

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Solar Energy

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Solution

The correct option is D Solar Constant
Solar constant is defined as the rate at which per unit area of the Earth's atmosphere receives the Sun's energy, when the Sun is at the mean distance from the Earth. Value is about 1388 watts per square metre.

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Similar questions

The solar energy reaching unit area at outer edge of the earth's atmosphere exposed perpendicularly to the rays of the Sun at the average distance between the Sun and earth is known as

Q. Solar constant is the amount of solar energy incident perpendicularly per unit time on unit surface area of the earth at an average distance between the Sun and the earth. Its value in

S_{0} = 1340 w / m^{2}

. Here calculate temperature of the Sun's surface.
Radius of the Sun

R_{s} = 7 \times 10^{8} m

Average distance between the earth and the Sun

R_{0} = 1.5 \times 10^{11} m

σ = 5.67 \times 10^{- 8} W m^{- 2} K^{- 4}

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 :

Q. A surface of area

1 m^{2}

kept perpendicular to the sun rays absorbs

1.8 M J

of solar energy in one hour.
(a) What is the amount of electrical energy produced when a solar panel of area

5 m^{2}

is exposed perpendicular to the sun rays for

5 h

. Take the efficiency of solar panel as 30%.
(b) Calculate the power generated in

k W

Q. Calculate the energy emitted by the sun in one second. Also estimate the mass of the sun that is converted to energy in one second.
(Take solar constant as

1.4 \times 10^{3} W m^{- 2}

, distance between the earth and the sun as

1.5 \times 10^{11} m

and the velocity of light as

3 \times 10^{8} m S^{- 1}

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What term is known as when the solar energy fall on the Earth's atmosphere exposed perpendicularly to the rays of the Sun at the average distance between the Sun and Earth?

The correct option is D Solar ConstantSolar constant is defined as the rate at which per unit area of the Earth's atmosphere receives the Sun's energy, when the Sun is at the mean distance from the Earth. Value is about 1388 watts per square metre.

The correct option is D Solar Constant
Solar constant is defined as the rate at which per unit area of the Earth's atmosphere receives the Sun's energy, when the Sun is at the mean distance from the Earth. Value is about 1388 watts per square metre.