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 (C)</p> Signup and view all the answers

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

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

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

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

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

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

What is a significant advantage of decentralized renewable energy systems?

<p>Reduced grid vulnerability (B)</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 (A)</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 (D)</p> Signup and view all the answers

What is the primary function of a pyrheliometer?

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

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

<p>Coal (C)</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 (A)</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 (C)</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 (A)</p> Signup and view all the answers

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

<p>Meeting the growing energy demand (D)</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 (B)</p> Signup and view all the answers

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

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

What is the primary function of a sunshine recorder?

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

What is the wavelength range of visible light?

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

What is the primary function of a pyrheliometer?

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

What is the purpose of calibration in a pyrheliometer?

<p>To ensure the accuracy of the instrument (A)</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 (C)</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 (A)</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 (B)</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 (B)</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 (D)</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 (B)</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 (A)</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 (A)</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 (A)</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 (C)</p> Signup and view all the answers

What does the solar constant represent?

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

How does the solar constant vary throughout the day?

<p>It remains constant throughout the day (C)</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 (B)</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 (D)</p> Signup and view all the answers

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

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

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