Master of Science I (Geoinformatics)Examination: Oct Nov 2016
Semester II (New CBCS)
SLR No. Day
Date Time Subject Name Paper
No. Seat No.
SLR SG
509
Thursday
17/11/2016
10.30 AM
to
01.00 PM
Introduction to Remote
Sensing
C
I
Instructions: Answer any five questions.
All questions carry equal marks.
Q.1 is compulsory.
Attempt any two from Q. 3 4
Attempt any two from Q. 6 7
Draw neat and labeled diagrams wherever necessary.
Total Marks:70
Q.1 Select the answer among the following: 14
Remote sensing systems which measures the naturally available energy are
called as
Active sensors Passive sensors
Productive sensors Negative sensors
The instrument which provides electromagnetic radiation of specified wave
length or a band of wave length to illuminate the earth surface are called
Sensor Passive sensors
Active sensor None of these
Electromagnetic radiation
Produces a time varying magnetic field and vice versa
Once generated, remains self-propagating
Is capable to travel across space
Consist of magnetic and electric fields.
All of these
The refractive index of the ocean water
Increases with salinity Increases with temperature
Decreases with salinity Decreases with temperature
to the relative brightness or colour of objects in an image.
Texture Pattern
Shape None
Water absorbs radiation strongly leaving little radiation to be either
reflected or transmitted.
NIR MIR
Visible Both NIR and MIR
following is an air-borne hyperspectral sensor.
MODIS AVIRIS
CHRIS Hyperion
The ability of a portion of a developed film to pass light is called its
Transmittance Reflectance
Radiance None of the above
Page 2 of 2
occurs when particles are very small compared to
wavelength of radiation.
Mie Radio
Non Selective Rayleigh
10) Wavelength ranges of visible spectrum is
0.3 0.38 0.4 to 0.7
0.7 10 10 100
11) An Image can either be in analog
Hard copy Digital form
Free form All of above
12) An Electromagnetic radiation of wavelength 0.56 micron falls under which
portion of spectrum.
Infra Read Visible
Microwave Radiowave
13) Bodies having high thermal inertia have to change their
temperature easily.
High No
Less None of the above
14) refers to the relative density of objects in an image.
Texture Pattern
Shape None
Q.2 What do you mean by Remote Sensing? Explain the principles of Remote
Sensing.
14
Q.3 Explain the nature of electromagnetic radiation and add a note on electromagnetic
spectrum.
14
Q.4 Explain the principles of Satellite Motion. What do you mean by Geosynchronous
and geostationary orbit?
14
Q.5 Write a short note on the following: 14
Limitation of GIS
Thermal Sensors
Q.6 Explain in short: 14
Image interpretation
Aerial Photography
Q.7 Describe in brief: 14
Spectral reflectance of vegetation, soil and water
Energy interaction with atmosphere