Energy obtained from sun is:
a) solar energy
b) wind energy
c) tidal energy
d) geothermal energy
The amount of solar energy falling vertically on atmosphere is:
a) 1.1 kilowatt per square meter
b) 1.2 kilowatt per square meter
c) 1.3 kilowatt per square meter
d) 1.4 kilowatt per square meter
Solar energy can be used for
producing electricity from:
a) two ways
b) three ways
c) four ways
d) five ways
Wind mill consists of four wings on a huge pole:
a) 60ft
b) 70ft
c) 80ft
d) 90ft
Some hot stone are found under the surface of the earth:
a) 10km
b) 15km
c) 20km
d) 25km
Fuel from biogas is of types:
a) 2
b) 3
c) 4
d) 5
The amount of solar energy falling vertically on the atmosphere (specifically, at the top of Earth's atmosphere, perpendicular to the sun's rays, at Earth's mean distance from the sun) is known as the **solar constant**. The widely accepted value for the solar constant is approximately **1.361 kilowatts per square meter (kW/m²)**. Some sources might round this to 1.366 or 1.37 kW/m². Given the options: a) 1.1 Kilowatt per square meter b) 1.2 Kilowatt per square meter c) 1.3 Kilowatt per square meter d) 1.4 Kilowatt per square meter The closest and most accurate answer among the choices, considering the typical rounding, is **d) 1.4 Kilowatt per square meter**. While 1.361 kW/m² is more precise, 1.4 kW/m² is often used as a rounded value for the solar constant.
by at 2025-05-22 07:01:22