Introduction to Remote Sensing
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Questions and Answers

What is the approximate scene size of Landsat 8 data in north-south direction?

  • 200 km
  • 170 km (correct)
  • 100 km
  • 230 km

    • What is the primary purpose of thermal bands 10 and 11 in Landsat 8?

  • To detect atmospheric aerosols
  • To provide more accurate surface temperatures (correct)
  • To identify geological features
  • To capture high-resolution images

    • What is the resolution of Bands 1-5 and 7-9 in Landsat 8?

  • 30 meters (correct)
  • 15 meters
  • 100 meters
  • 150 meters

    • What is the wavelength range of the Panchromatic band in Landsat 8?

    <p>0.50 - 0.68 micrometers</p> Signup and view all the answers

    What is the launch date of Landsat 8?

    <p>February 11, 2013</p> Signup and view all the answers

    What was the primary purpose of the Rohini Technology Payload launched on 10 August 1979?

    <p>To measure the in-flight performance of the SLV-3 launch vehicle</p> Signup and view all the answers

    What is the primary application of photo-geology?

    <p>To identify geological features</p> Signup and view all the answers

    Which launch vehicle was used for the launch of the Bhaskara-I satellite?

    <p>C-1</p> Signup and view all the answers

    What was the outcome of the INSAT-1A satellite launched on 10 April 1982?

    <p>It worked for exactly six months</p> Signup and view all the answers

    What was the main difference between the Rohini RS-D1 and the Rohini RS-D2 satellites?

    <p>RS-D1 was launched by the first developmental launch of SLV-3 while RS-D2 was launched by the second</p> Signup and view all the answers

    What was the significance of the Aryabhata satellite launched on 19 April 1975?

    <p>It provided technological experience in building and operating a satellite system</p> Signup and view all the answers

    What was the launch vehicle used for the launch of the Rohini RS-1 satellite?

    <p>SLV-3</p> Signup and view all the answers

    What is the primary goal of remote sensing in earth sciences?

    <p>To monitor or measure phenomena in the Earth's lithosphere, biosphere, hydrosphere, and atmosphere</p> Signup and view all the answers

    What is the name of the satellite designed for remote sensing applications, built by the students of Noorul Islam University?

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

    Which satellite is India's 18th communication satellite and till date, its heaviest?

    <p>GSAT-17</p> Signup and view all the answers

    What is the unit of measurement for the wavelength of electromagnetic radiation?

    <p>μm (10-6 m)</p> Signup and view all the answers

    How do remote sensors typically collect information about an object?

    <p>By measuring the transmission of electromagnetic energy</p> Signup and view all the answers

    What is the wavelength range of Band 5 (Lower Red) in the Multi Spectral Scanner (MSS)?

    <p>0.6 – 0.7 microns</p> Signup and view all the answers

    What is the purpose of Band 4 (Green) in the Multi Spectral Scanner (MSS)?

    <p>Identification of different depths and/or turbidity of water along the coastal areas</p> Signup and view all the answers

    What is the main difference between remote sensing used by humans and remote sensing used by earth scientists?

    <p>The purpose of the technique</p> Signup and view all the answers

    Which rocket was used to launch the CartoSat-2E satellite?

    <p>PSLV-C38</p> Signup and view all the answers

    What is the role of helicopters, planes, and satellites in remote sensing?

    <p>To position remote sensors away from the object of interest</p> Signup and view all the answers

    What is the name of the satellite that was co-designed and built with private sector assistance?

    <p>IRNSS-1H</p> Signup and view all the answers

    What is the name of the technique used to collect information about an object without physical contact?

    <p>Remote sensing</p> Signup and view all the answers

    What is the term used to describe the ratio of distances between corresponding points on a photograph and on the ground?

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

    What is the formula used to calculate the scale of a vertical aerial photo?

    <p>S = f/H</p> Signup and view all the answers

    What is the unit of measurement of the focal length in the given example?

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

    What is the elevation of the terrain above mean sea level in the given example?

    <p>200 ft</p> Signup and view all the answers

    What is the Representative Fraction or Ratio Fraction of the scale in the given example?

    <p>1:9,600</p> Signup and view all the answers

    What is the meaning of the scale 1:9,600 in the given example?

    <p>1 unit of horizontal distance on photograph is equal to 9,600 units on ground</p> Signup and view all the answers

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