WorksheetsSolar radiation
Total questions: 25
Worksheet time: 25mins
What is the diameter of the sun ?
1.50 x 108 Km
1.39 x 106 Km
1.27 x 104 Km
None of the above
What is the diameter of the earth ?
1.27 x 104 Km
1.39 x 106 Km
1.50 x 108 Km
None of the above
Solar radiation is electromagnetic radiation
True
False
The wavelenght of UV region in micrometre
0-0.38
0.39-0.78
Greater than 0.78
None of the above
The wavelength of Infrared region in micrometre
0-0.38
0.39-0.78
Greater than 0.78
None of the above
What is the mean distance between sun and earth ?
1.27 x 104 Km
1.50 x 108 Km
1.39 x 106 Km
None of the above
Solar Constant (Isc) is the rate at which solar energy arrives at the top of the atmosphere.
True
False
Pick the standard value for solar constant
1.353 Kilowatts per square metre
116.5 langleys per hour
429.2 Btu per sq.ft.per hour
All of the above
The distance between the earth and the sun is constant through the year.
True
False
Solar radiation incident on the outer atmosphere of earth is called as
(a)
The earth is closest to the sun in the winter and farthest away in the summer.
True
False
Maximum value of extra terrestial radiation is
7042 W/ m2
2074 W/ m2
4720 W/ m2
2407 W/ m2
The solar radiation that reaches the earth’s surface after passing through the earth’s atmosphere is called as
(a)
Ozone absorbs
UV radiation
IR radiation
None of the above
Co2 and water vapour
UV radiation
IR Radiation
Solar radiation that has not been absorbed or scattered and reaches the ground directly from the sun is called as
(a)
Direct radiation produces a shadow when interrupted by an opaque object.
True
False
Solar radiation received from the sun after its direction has been changed by reflection and scattering by the atmosphere is called as
Direct radiation
Beam radiation
Diffuse radiation
All the above
Pick the correct statement
Total radiation =Direct radiation * Diffuse radiation
Total radiation =Direct radiation -Diffuse radiation
Total radiation =Direct radiation + Diffuse radiation
Total radiation =Direct radiation / Diffuse radiation
Total Solar radiation is called as
(a)
On a clear,cloudless day about 10 to 20 % of the insolation is from diffuse radiation
True
False
Position of the sun directly overhead is called as
(a)
What is the value of air mass when the sun is at zenith ?
0
1
2
6
Pick the correct statement w.r.t to absorption of solar radiation
Absorption results in widening of the bandwidth.
Absorption results in narrowing of the bandwidth.
Absorption does not affect bandwidth.
None of the above
Scattering does not attenuate the radiation
False
True
