1. The spectral region of the electromagnetic radiation which passes through the atmosphere without much attenuation is known as:
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Atmospheric window
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2. A perfectly black body:
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Absorbs all the radiations of every wave lengths
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3. The arrangement of terrain features which provides attributes: the shape, size and texture of objects, is called:
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Spatial variation
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4. The instruments which provide electromagnetic radiation of specified wave length or a band of wave lengths to illuminate the earth surface, are called:
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Active sensors
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5. The part radiation due to scattered/diffused radiation entering the field of view of a remote sensor other than that from the required target,
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Reduces the contrast of the image and also its sharpness
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6. Which the following statements is correct?
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During the night, earth emits radiation from its surface
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7. Coherence of two electromagnetic waves takes place if their phase difference is:
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Constant in time and space
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8. Remote sensing techniques makes use of the properties of-----emitted, reflected or diffracted by the sensed objects:
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Electromagnetic waves
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9. Which one of the following residual biases involves the GPS accuracy?
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Signal propagation baises due to the sphere and troposphere propagation.
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10. A and B are two towers of equal height diametrically opposite on either side of the nadir point, at 3 km and 5 km distances. Which one of the following statements is correct?
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Height displacement of A will be less than that of B
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11. Select the correct statement from the following:
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When the electric field oscillates in the direction of the electric vector, a plane polarised wave is formed.
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12. Pick up the important characteristic of a target which facilitates its identification from the following:
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Spectral variation
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13. The value of energy quantum for radiation of any frequency is proportional to:
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The frequency
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14. Pick up the correct statement from the following:
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Indian space effort started in 1962 with the establishment of a rocket.
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15. Which one of the following frequency regions is a part of sun's radiation?
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Infrared frequency region
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16. Which one of the following statements is correct?
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All of these
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17. Due to pertubation of the orbit, satellite orbit parameters are frequently updated on measurements carried out by its
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Five ground stations
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18. Pick up the correct definition from the following with response to GIS.
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The geometric property which describes the linkage between line features is defined as connectivity.
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19. The basic requirement of any sensor system, is:
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All of these
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20. Crop Acreage and Production Estimation (CAPE) was funded and taken up in 1983 by:
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India
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