Remote Sensing in Agriculture
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Questions and Answers

Which type of radiation is NOT commonly used in remote sensing?

  • Visible light
  • X-rays (correct)
  • Near infra red
  • Thermal infrared

    • What is the main difference between passive and active remote sensing sensors?

  • Passive sensors emit their own radiation, while active sensors record incident radiation
  • Passive sensors measure visible light, while active sensors measure infrared radiation
  • Passive sensors measure infrared radiation, while active sensors measure visible light
  • Passive sensors record incident radiation, while active sensors emit their own radiation (correct)

    • What is the process of acquiring information about the Earth's surface by measuring its reflected and emitted radiation without coming into direct contact with the object called?

  • Harit Dhara
  • Remote sensing (correct)
  • Incident radiation
  • Soil fertility management

    • Which bands of electromagnetic radiation are commonly used in remote sensing?

    <p>Visible light, near infra red, and thermal infrared</p> Signup and view all the answers

    What do remote sensing sensors interact with in order to acquire information about the Earth's surface?

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

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