The irradiance of the sun dependent on the wavelength of the radiant energy it emits.
<h3>
What is irradiance of the sun?</h3>
The solar irradiance is the output of light energy from the entire disk of the Sun, measured at the Earth.
The energy output is given as;
E = hf
E = hc/λ
where;
- c is speed of light
- f is frequency of the light
- λ is wavelength of the light
Thus, we can conclude that the irradiance of the sun dependent on the wavelength of the radiant energy it emits.
Learn more about irradiance of the sun here: brainly.com/question/15294830
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Answer:
174.85 W
Explanation:
Area of plate = 3.14 x (15x 10⁻²)²
= 706.5 x 10⁻⁴ m²
heat being radiated by convection = 12 x 706.5 x 10⁻⁴ ( 180 - 15 )
= 139.88 W. This energy needs to be fed by heat source to maintain a constant temperature of 180 degree.
If power of electric source is P
P x .8 = 139.88
P = 139.88 / .8
= 174.85 W
Answer:
190 000 m
Explanation:
1km = 1000m
--> 190 km = 190 x 1000 = 190 000 m