Renewable Energy Sources Overview
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Questions and Answers

What is the primary source of energy for solar power?

  • Sunlight (correct)
  • Flowing water
  • Wind
  • Earth's internal heat

    • Which type of energy is considered renewable when sourced sustainably?

  • Biomass (correct)
  • Fossil fuels
  • Geothermal energy
  • Nuclear energy

    • What is the primary advantage of geothermal energy?

  • Widespread availability
  • Low environmental impact
  • Reliability and sustainability (correct)
  • High energy output

    • Why is traditional biomass considered non-renewable?

    <p>It contributes to deforestation and air pollution</p> Signup and view all the answers

    What is the primary difference between renewable and non-renewable energy sources?

    <p>Replenishment rate</p> Signup and view all the answers

    What is a major advantage of renewable energy sources over non-renewable sources?

    <p>They offer more sustainable and secure energy options</p> Signup and view all the answers

    What is a significant environmental benefit of transitioning to renewable energy sources?

    <p>Reduced greenhouse gas emissions</p> Signup and view all the answers

    What is a key economic benefit of investing in renewable energy?

    <p>Job creation and economic growth</p> Signup and view all the answers

    What is a significant advantage of decentralized renewable energy systems?

    <p>Reduced grid vulnerability</p> Signup and view all the answers

    What is a key driver of the growing emphasis on transitioning to renewable energy?

    <p>Growing public awareness of environmental issues</p> Signup and view all the answers

    What is the main reason behind the transition to renewable energy?

    <p>To address the challenges posed by climate change</p> Signup and view all the answers

    What is the primary function of a pyrheliometer?

    <p>To measure the direct solar irradiance</p> Signup and view all the answers

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

    <p>Coal</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 objective of the Pradhan Mantri Sahaj Bijli Har Ghar Yojana (Saubhagya) initiative?

    <p>To provide electricity to all households</p> Signup and view all the answers

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

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

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

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

    What is the function of a thermoelectric sensor in a pyranometer?

    <p>To absorb solar radiation and generate a voltage signal</p> Signup and view all the answers

    What is the unit of distance used to measure the solar constant?

    <p>Astronomical unit (AU)</p> Signup and view all the answers

    What is the primary function of a sunshine recorder?

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

    What is the wavelength range of visible light?

    <p>400 nm to 700 nm</p> Signup and view all the answers

    What is the primary function of a pyrheliometer?

    <p>To measure the intensity of solar radiation</p> Signup and view all the answers

    What is the purpose of the concentrating optics system in a pyrheliometer?

    <p>To focus sunlight onto a sensor</p> Signup and view all the answers

    Why is the sensing element of a pyrheliometer often blackened?

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

    What is the purpose of calibration in a pyrheliometer?

    <p>To ensure the accuracy of the instrument</p> Signup and view all the answers

    What is the purpose of the recording medium in a sunshine recorder?

    <p>To capture the focused sunlight and record its duration</p> Signup and view all the answers

    What is the main reason for the daily rotation of the sunshine recorder?

    <p>To synchronize with the sun's movement across the sky</p> Signup and view all the answers

    What is the purpose of the sun path diagram in a sunshine recorder?

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

    What is the main difference between traditional and modern sunshine recorders?

    <p>The level of human intervention required</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 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 significance of sunshine data in climatology?

    <p>To characterize different climate zones and understand weather patterns</p> Signup and view all the answers

    What is the primary application of sunshine recorders in meteorology?

    <p>To aid researchers in understanding the Earth's energy balance</p> Signup and view all the answers

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

    <p>A mark corresponding to the duration of sunshine</p> Signup and view all the answers

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

    <p>To focus sunlight onto a small point on the recording medium</p> Signup and view all the answers

    What does the solar constant represent?

    <p>The solar energy received at the outer atmosphere of Earth</p> Signup and view all the answers

    How does the solar constant vary throughout the day?

    <p>It remains constant throughout the day</p> Signup and view all the answers

    What is the significance of the solar declination angle?

    <p>It influences the latitude where the Sun is directly overhead</p> Signup and view all the answers

    Why is the angle of incidence important in solar energy applications?

    <p>It affects the amount of sunlight reaching a surface</p> Signup and view all the answers

    Which type of solar radiation is mostly absorbed by the atmosphere?

    <p>UVC radiation</p> Signup and view all the answers

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