Renewable Energy Sources Overview
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Questions and Answers

What is the primary conversion process in photovoltaic cells?

  • Converting water movement into heat
  • Converting kinetic energy into wind
  • Converting sunlight into electricity (correct)
  • Converting electricity into sunlight

    • Which of the following energy sources is not considered renewable if sourced unsustainably?

  • Geothermal energy
  • Wind energy
  • Hydropower
  • Biomass (correct)

    • What is the main environmental advantage of renewable energy sources?

  • Less environmental impact (correct)
  • Lower cost
  • Faster replenishment
  • Higher energy output

    • What is the primary source of energy in nuclear power plants?

    <p>Fission reactions in uranium or plutonium</p> Signup and view all the answers

    Which of the following is a characteristic of non-renewable energy sources?

    <p>Finite and depletable</p> Signup and view all the answers

    What is the primary motivation behind the global transition to renewable energy sources?

    <p>To address the challenges posed by climate change and ensure a sustainable energy future</p> Signup and view all the answers

    What is the primary source of energy for power generation in India?

    <p>Coal</p> Signup and view all the answers

    What is the goal of the Indian government's ambitious renewable energy targets?

    <p>To increase the share of renewable energy in the total energy mix</p> Signup and view all the answers

    What is the primary challenge posed by rapid urbanization in India?

    <p>Meeting the growing energy demand</p> Signup and view all the answers

    What is the purpose of the Perform, Achieve, and Trade (PAT) scheme in India?

    <p>To improve energy efficiency in industries</p> Signup and view all the answers

    What is the primary difference between a pyrheliometer and a pyranometer?

    <p>The direction of solar radiation measurement</p> Signup and view all the answers

    What is the purpose of the glass or quartz dome in a pyranometer?

    <p>To minimize heat loss and allow sunlight to enter</p> Signup and view all the answers

    What is the typical unit of measurement for solar irradiance in both pyrheliometers and pyranometers?

    <p>Watts per square meter</p> Signup and view all the answers

    What is the function of a sunshine recorder in meteorology, climatology, and solar energy studies?

    <p>To measure the duration of sunshine</p> Signup and view all the answers

    What is the characteristic of a pyranometer's cosine response?

    <p>It is sensitive to solar radiation arriving from all directions on a horizontal plane</p> Signup and view all the answers

    What is the primary purpose of a pyrheliometer in solar energy research?

    <p>To quantify the intensity of direct solar irradiance</p> Signup and view all the answers

    Which type of radiation has wavelengths between 400 nm to 700 nm and is visible to the human eye?

    <p>Visible light</p> Signup and view all the answers

    What is the function of the black coating on the sensing element of a pyrheliometer?

    <p>To maximize the absorption of solar radiation</p> Signup and view all the answers

    Why is calibration of a pyrheliometer crucial for obtaining reliable measurements?

    <p>To ensure accuracy and precision in measurements</p> Signup and view all the answers

    What is the significance of the near-infrared region of infrared radiation in various applications?

    <p>It is associated with heat and is used in remote sensing</p> Signup and view all the answers

    What is the primary function of the glass sphere or prism in a sunshine recorder?

    <p>To capture the focused sunlight on the recording medium</p> Signup and view all the answers

    What is the purpose of the sun path diagram in sunshine recorders?

    <p>To understand the position of the sun in the sky at different times of the day and throughout the year</p> Signup and view all the answers

    What is the result of the focused sunlight on the recording medium?

    <p>A burn or mark that corresponds to the duration of sunshine during a specific period</p> Signup and view all the answers

    What is the main advantage of modern sunshine recorders over traditional ones?

    <p>Automatic mechanisms for data collection and analysis</p> Signup and view all the answers

    What is the significance of daily and annual sunshine data in climate studies?

    <p>To characterize different climate zones and understand the influence of solar radiation on local and global weather patterns</p> Signup and view all the answers

    What is the purpose of deploying sunshine recorders globally?

    <p>To study regional and global patterns of sunshine duration</p> Signup and view all the answers

    What is the climatological significance of sunshine data?

    <p>It is an essential parameter in climatology for characterizing different climate zones and understanding the influence of solar radiation on local and global weather patterns</p> Signup and view all the answers

    What is the contribution of sunshine recorders to meteorological databases and climate studies?

    <p>They provide valuable information on daily and annual variations in sunshine duration</p> Signup and view all the answers

    What is the significance of the rotation of the sunshine recorder on a daily basis?

    <p>It is synchronized with the sun's movement across the sky</p> Signup and view all the answers

    What is the result of the measurement of the length of the burns or marks on the recording medium?

    <p>A numerical value of the total duration of sunshine for a given day</p> Signup and view all the answers

    What is the primary focus of studying the solar constant in solar physics and Earth sciences?

    <p>Understanding climate patterns and solar influences</p> Signup and view all the answers

    How do scientists measure the solar constant and monitor variations over time?

    <p>Utilizing radiometers and satellites</p> Signup and view all the answers

    Which Earth-Sun angle provides information about the direction of sunlight at any specific point on the Earth's surface?

    <p>Solar Azimuth Angle</p> Signup and view all the answers

    What does the angle of incidence refer to in solar energy applications?

    <p>The angle between incoming sunlight and a surface perpendicular to the Sun's rays</p> Signup and view all the answers

    What is a primary characteristic of Ultraviolet (UV) radiation emitted by the Sun?

    <p>Presence of harmful effects like skin damage</p> Signup and view all the answers

    What is a key reason for the growing emphasis on transitioning to renewable energy sources?

    <p>Reduced greenhouse gas emissions compared to burning fossil fuels</p> Signup and view all the answers

    Why are renewable energy sources considered more sustainable and secure compared to non-renewable sources?

    <p>Continuous or naturally restored availability of renewables</p> Signup and view all the answers

    How do renewable energy projects contribute to community and rural development?

    <p>By fostering economic development and providing job opportunities</p> Signup and view all the answers

    What impact does public awareness of environmental issues have on the demand for renewable energy?

    <p>Leads to increased support and investment in renewable energy</p> Signup and view all the answers

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