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WorksheetsRES- SOLAR CONSTANT, RADIATIONS
Total questions: 10
Worksheet time: 5mins
The amount of energy received in unit time on a unit area perpendicular to the sun’s direction at the mean distance of the earth from the sun is called ______
Solar radiation
Solar constant
Intensity of solar radiation
Air Mass
What is ‘n’ in the following solar intensity formula? I = Isc {1 + 0.033cos (360n/365)}
a) Day of the year
b) Month of the year
c) The year
d) Week of the year
When the sun is directly on the top of head, it as referred to _________
a) Zenith
b) Azimuth
c) Declination
d) Hour angle
Path length of radiation through the atmosphere to the length of path when the sun is at zenith is called ___________
a) Declination
b) Air mass
c) Azimuth
d) Solar Constant
Solar Altitude is also called as ________
a) Declination
b) Altitude angle
c) Zenith angle
d) Azimuth angle
By which of the following symbol is solar Declination denoted by ____________
a) δ
b) ρ
c) Δ
d) γ
The angle through which the earth must turn to bring the meridian of a point directly in sun’s rays is called __________
Hour angle
Declination
Latitude
Air mass
The value of solar constant varies between
1123 and 1237 W/m2
1345 and 1453 W/m2
1987 and 2346 W/m2
1335 and 1815 W/m2
Absorption of Solar radiations at earth’s surface occur due to presence of
Ozone
Water vapours
Carbon di-oxide
All of the above
The global radiation reaching a horizontal surface on the earth is given by
Hourly beam radiation + Hourly diffuse radiation
Hourly beam radiation – Hourly diffuse radiation
Hourly beam radiation / Hourly diffuse radiation
Hourly diffuse radiation / Hourly beam radiation
