Electromagnetic Energy in Remote Sensing

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What is a key characteristic of electromagnetic energy related to its wave nature?

Speed of light travel

Quantization in discrete packets

Ability to undergo interference and diffraction (correct)

Constant speed for all wavelengths

Which property defines the speed at which electromagnetic waves travel?

Wave nature

Quantization

Spectrum

Constant speed for all wavelengths (correct)

What is quantized in discrete packets in electromagnetic energy?

Speed of light

Frequency

Energy (correct)

Wave nature

How does the energy of a photon relate to its frequency in electromagnetic energy?

Energy is directly proportional to frequency Signup and view all the answers

Which of the following is NOT part of the electromagnetic spectrum?

Sound waves Signup and view all the answers

What are the key components of electromagnetic waves that oscillate perpendicular to each other and to the direction of propagation?

Electric and magnetic fields Signup and view all the answers

What is the range of wavelengths that can be detected by the human eye?

380 to 750 nanometers Signup and view all the answers

Which type of radiation is often associated with sunburn and sterilization?

Ultraviolet (UV) Signup and view all the answers

What is a key application of X-rays mentioned in the text?

Medical imaging Signup and view all the answers

Which type of radiation is often associated with nuclear processes?

Gamma rays Signup and view all the answers

Why is understanding the electromagnetic spectrum crucial in various scientific and technological fields?

To gain unique capabilities for specific applications Signup and view all the answers

What is black body radiation referred to in terms of emitted electromagnetic radiation?

Radiation emitted by a perfect black body Signup and view all the answers

What is the main focus of Snell's Law?

Explaining wave propagation through different media Signup and view all the answers

According to Huygens' Principle, what serves as a source of secondary spherical wavelets?

Constant points on a wavefront Signup and view all the answers

What does Faraday's Law of Electromagnetic Induction describe?

The induction of voltage due to a changing magnetic field Signup and view all the answers

How does the Lorentz Force Law describe the force experienced by a charged particle?

Incorporating both electric and magnetic forces Signup and view all the answers

Remote sensing atmospheric effects refer to which interactions?

Interactions between Earth's atmosphere and radiation during sensing Signup and view all the answers

Which of the following accurately describes the purpose of Huygens' Principle?

Explaining wave propagation using secondary wavelets Signup and view all the answers

What is the purpose of GOES satellites in geostationary orbit?

Continuous monitoring of weather patterns and environmental events over specific regions Signup and view all the answers

At what altitude do Aqua and Terra satellites operate?

705 kilometers Signup and view all the answers

What is the purpose of the Hubble Space Telescope in low Earth orbit?

Observes distant celestial objects across various wavelengths Signup and view all the answers

What is the function of GPS satellites in medium Earth orbit?

Providing precise location and timing information for navigation Signup and view all the answers

Where does the International Space Station (ISS) orbit?

Approximately 420 kilometers above Earth Signup and view all the answers

What type of data do MODIS instruments on Aqua and Terra satellites provide?

Global data for climate studies, land cover monitoring, and atmospheric observations Signup and view all the answers

When was the IRS-1B satellite, part of the IRS-2 series, launched?

August 29, 1991 Signup and view all the answers

What was the main purpose of the IRS-P3 satellite launched on March 21, 1996?

Resource monitoring Signup and view all the answers

Which satellite marked the beginning of India's Earth observation program?

IRS-1 Signup and view all the answers

What distinguishes the Cartosat satellites in terms of their purpose?

High-resolution cartographic applications Signup and view all the answers

When was the Resourcesat-1 satellite launched?

April 17, 2003 Signup and view all the answers

What feature distinguishes the IRS-3 series from its predecessors?

Enhanced sensors for higher resolution imaging Signup and view all the answers