Environmental Studies · Physics
Solar Radiation and Energy
876 Questions
Enhance your general science knowledge with these questions on solar radiation and energy. The topics span solar thermal power plants, photovoltaic devices, and the sun's energy output. This material is useful for environmental studies and physics.
Solar energy conversionSun luminosity and compositionAtmospheric reflectionSolar thermal technology
Solar Radiation and Energy Questions
Water vapor contains a huge amount of stored energy known as
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Latent heat
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Solar energy
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Stored heat
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Mechanical energy
A
Correct answer
Explanation
Latent heat is the energy absorbed or released by a substance during a change in its physical state (phase change) that occurs without changing its temperature.
What is the origin of energy that drives the water cycle?
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Trees
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Water
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Mountains
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Sun
D
Correct answer
Explanation
- The hydrological cycle is a prominent method to rejuvenate the freshwater resources.
- It involves the evaporation of water into water vapor by the heat of the sun which further condenses into tiny water droplets that fall on the earth as rain.
- This continuous recycling of water leads to the recharging of water resources.
- The solar radiation plays an important role in the water cycle.
Hence, option D is correct.
Which wavelength of sun is used finally as electric energy?
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Radio waves
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Infrared waves
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Visible light
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Micro waves
B
Correct answer
Explanation
The heating property of Infra red waves is used in solar heater and solar cells, Hence option (b) is correct.
The heat in solar radiation is mainly due to the presence of _______ .
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infrared radiations
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ultraviolet radiations
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visible light
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x-rays
A
Correct answer
Explanation
Infrared radiation is associated with thermal energy transfer, which is why it is commonly referred to as heat radiation.
Name the radiation which can be detected by a thermophile.
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infrared radiation
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ultraviolet radiation
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X-rays
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All of the above
A
Correct answer
Explanation
A thermophile (or thermopile) is a device used to measure thermal radiation, which is primarily infrared radiation. It works by converting thermal energy into electrical energy.
Les-energetic electromagnetic radiations like X-rays are generated in the
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Radiation zone
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Convection zone
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Photosphere
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Chromosphere
A
Correct answer
Explanation
We know that radiation is emission or transmission of energy in the form of waves or particles.
$X$ rays make up $X$-radiation, a form of electromagnetic radiation.
That's why $X$ rays are generated in radiation zone.
What is the primary source of solar energy?
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Nuclear Fusion
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Fossil Fuels
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Sunlight
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Wind
C
Correct answer
Explanation
Solar energy is derived from the sun's rays, which consist of electromagnetic radiation.
Which type of solar cell is commonly used in commercial solar panels?
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Monocrystalline Silicon
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Polycrystalline Silicon
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Thin-Film Solar Cells
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Organic Solar Cells
A
Correct answer
Explanation
Monocrystalline silicon solar cells are widely used in commercial solar panels due to their high efficiency and long lifespan.
What is the primary function of a solar inverter in a solar energy system?
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Generating Electricity
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Storing Electricity
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Converting AC to DC
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Converting DC to AC
D
Correct answer
Explanation
A solar inverter converts the direct current (DC) electricity generated by solar panels into alternating current (AC) electricity, which is compatible with the electrical grid and household appliances.
Which type of solar energy technology involves the use of mirrors to concentrate sunlight onto a receiver?
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Photovoltaic (PV) Systems
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Concentrated Solar Power (CSP) Systems
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Solar Thermal Systems
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Hybrid Solar Systems
B
Correct answer
Explanation
Concentrated Solar Power (CSP) systems use mirrors or lenses to concentrate sunlight onto a receiver, generating high temperatures to produce electricity or heat.
What is the term used to describe the process of converting sunlight directly into electricity?
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Solar Irradiance
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Solar Photovoltaic Effect
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Solar Thermal Energy
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Solar Radiation
B
Correct answer
Explanation
The Solar Photovoltaic Effect is the process by which certain materials generate an electrical current when exposed to sunlight.
Which type of solar energy technology involves the use of solar panels to generate electricity?
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Solar Thermal Systems
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Concentrated Solar Power (CSP) Systems
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Photovoltaic (PV) Systems
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Hybrid Solar Systems
C
Correct answer
Explanation
Photovoltaic (PV) systems use solar panels to convert sunlight directly into electricity.
What is the primary factor that determines the efficiency of a solar panel?
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Size of the Solar Panel
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Type of Solar Cell Material
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Angle of the Solar Panel
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Temperature of the Solar Panel
B
Correct answer
Explanation
The type of solar cell material used in a solar panel is the primary factor that determines its efficiency in converting sunlight into electricity.
Which type of solar energy technology involves the use of solar collectors to generate heat?
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Concentrated Solar Power (CSP) Systems
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Photovoltaic (PV) Systems
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Solar Thermal Systems
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Hybrid Solar Systems
C
Correct answer
Explanation
Solar thermal systems use solar collectors to absorb sunlight and generate heat, which can be used for various applications such as space heating, water heating, or industrial processes.
Which type of solar energy technology involves the use of a combination of solar PV and solar thermal systems?
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Concentrated Solar Power (CSP) Systems
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Photovoltaic (PV) Systems
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Solar Thermal Systems
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Hybrid Solar Systems
D
Correct answer
Explanation
Hybrid solar systems combine solar PV and solar thermal technologies to generate both electricity and heat from sunlight.