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Home Civil Engineering Elements of Remote Sensing Comments

  • Question
  • 'A time varrying electric field produces a magnetic field.' This phenemenon is called:


  • Options
  • A. Hertz's law
  • B. Ampere Maxwell's law
  • C. Faraday's law
  • D. Kirchoff s law

  • Correct Answer
  • Ampere Maxwell's law 


  • Elements of Remote Sensing problems


    Search Results


    • 1. Which one of the following geometric errors of satellite sensors is random?

    • Options
    • A. scan skew
    • B. panoramic distortion
    • C. earth rotation
    • D. altitude variation
    • Discuss
    • 2. The altitudinal distance of a geostationary satelite from the earth is about:

    • Options
    • A. 26, 000 km
    • B. 30, 000 km
    • C. 36, 000 km
    • D. 44, 000 km
    • Discuss
    • 3. Due to scan geometery of a satellite sensor:

    • Options
    • A. the off-nadir resolution is degraded
    • B. the ground distance swept by the senor, IFOV is proportional to sec2?, where ? is the angle of scan measured from the nadir
    • C. the details towards the edge of the scan get compressed
    • D. All of these
    • Discuss
    • 4. Which one of the following statements is correct?

    • Options
    • A. The function of an information system is to improve ones ability to make decisions
    • B. The information system is the chain of operations
    • C. A map is a collection of stored, analysed data, its stored information is suitability used in making decisions
    • D. All the above
    • Discuss
    • 5. Which one of the following quantities forms the basis of radiometery?

    • Options
    • A. Radiant energy (Q)
    • B. Radiant flux (?)
    • C. Radiant intensity (I)
    • D. Radiance (L)
    • E. All of these
    • Discuss
    • 6. Pick up the correct statement from the following :

    • Options
    • A. The first man-made satellite, Sputnikl' was launched on 4th October, 1957
    • B. The United State's Explorer 6 transmitted the first picture of the earth in August 1959
    • C. Television Infrared Observation Satellite (TIROS) designed for meteorological observations, started systematic earth observations from space from 1, April, 1960
    • D. U.S.A.'s highly secret mission CORONA started the collection of intelligence photograpy in 1960
    • E. All of these.
    • Discuss
    • 7. The reflectance from a surface is called specular reflection if it follows: .

    • Options
    • A. Snells's law
    • B. Lambert's cosine law
    • C. Planktan's law
    • D. All of these
    • Discuss
    • 8. Repetitive observations of the same area at equal interval of time, are useful to monitor the dynamic phenomena :

    • Options
    • A. Cloud evolution
    • B. Vegetative cover
    • C. Snow cover
    • D. Forest fires
    • E. All of these
    • Discuss
    • 9. Pick up the correct statement from the following :

    • Options
    • A. The minimum frequency of light for which no electrons are emitted, is called threshold frequency.
    • B. Polarising angle of glass is 57°.5
    • C. At the polarising angle, the reflected and refracted rays are orthogonal
    • D. All the above
    • Discuss
    • 10. Pick up the correct statement from the following:

    • Options
    • A. The refractive index of a medium varies according to the wavelength of the radiation,
    • B. The variation of the refractive index with wave length, is called dispersion,
    • C. The splitting of colours of white light by passing through a prism, is caused due to dispersion.
    • D. All the these
    • Discuss


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