B.Sc. Quiz

What is the inclination of earth’s axis in degrees

• 37

• 53

• 23.5

• 10

How does the inclination of earth’s axis affect the incoming solar radiation?

• All the solar radiation is concentrated around the equator

• The radiation is distributed along the entire equator

• All radiation is concentrated at the poles

• Solar radiation is non-uniformly distributed throughout the earth’s surface

What is scattering?

• Spreading of solar radiation over large areas

• Absorption of solar radiation by gaseous molecules

• Absorption of outgoing long-wave radiation and re-emitting it back to the earth

• Deflection of some wavelengths in all directions when passed through air

What is the Angstrom compensation pyrheliometer used to measure?

• Direct solar radiation

• Indirect solar radiation

• Diffused solar radiation

• UV radiation

What is the main difference between pyranometer and pyrheliometer

• Both measure solar radiation

• Pyranometer measures global radiation while pyrheliometer measures direct solar radiation

• Pyranometer and pyrheliometer measure global radiation

• Pyranometer measures solar radiation while pyrheliometer measures global radiation

How does a sunshine recorder work

• Measures the solar irradiance

• Measures the solar radiation

• Measures the number of hours of sunshine

• Measures the number of hours of sunshine above a certain threshold

What are three relevant bands of solar radiation

• UV, infrared and far infrared

• UV, visible and infrared

• Ultrasonic, infrared and visible

• UV, ultrasonic and near infrared

Which two bands of solar radiation are majority in the total solar radiation reaching earth

• UV and visible

• Visible and ultrasonic

• Visible and infrared

• Infrared and UV

What is direct solar radiation

• Solar radiation directly received by earth’s surface from sun

• Cosmic radiation directly received by earth’s surface

• Solar radiation received by earth’s surface after reflection

• Cosmic radiation received by earth’s surface after reflection

What is extraterrestrial radiation

• Intensity of sun at the top of earth’s atmosphere

• Intensity of sun at the top of its atmosphere

• Energy of sun at the top of earth’s atmosphere

• Force of sun on earth