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Elements Of Remote Sensing

Elements Of Remote Sensing
The reflectance from a surface is called specular reflection if it follows:

All of these
Lambert
Snell’s law
Planktan

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Elements Of Remote Sensing
Consider the following statements regarding the satellite imaging:
1. The satellite orbit is fixed in the inertial space
2. During successive across-track imaging, the earth rotates beneath the sensor
3. The satellite images a skewed area
Which one of the following statements is/are correct?

1, 2, 3
1, 2
2, 3
1, 3

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Elements Of Remote Sensing
The reflection of solar energy is characterized by the water content in the leaf, in the reflective optical infrared:

Short wave-IR (1.3 - 2.7 μm) region
Near-IR (0.7 - 1.3 μm) region
Visible (0.4 - 0.7 μm) region
None of these

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Elements Of Remote Sensing
The value of energy quantum for radiation of any frequency is proportional to:

The reciprocal of the energy
The square of the frequency
The frequency
The square root of the frequency

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Elements Of Remote Sensing
A passive sensor uses:

Flash light as a source of energy
Sun as the source of energy
Its own source of energy
None of these

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Elements Of Remote Sensing
'A time varying electric field produces a magnetic field.' This phenomenon is called:

Faraday's law
Hertz's law
Kirchoff’s law
Ampere Maxwell's law

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