ELEMENTS OF REMOTE SENSING QUIZ

The reflectance from a surface is called specular reflection if it follows:

Snell’s law

All of these

Lambert

Planktan

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The normal altitude of GPS satellite is about

24,400 km

20,200 km

36,100 km

16,200 km

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Which one the following is a correct statement?

The transitional layer between two adjoining horizons is called boundary

The vertical section of the soil extending into the parent material, is called profile

The layers of the soil parallel to the earth surface are called horizons

All of these

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YOUR ANSWER : ?

"An Electromagnetic wave falls on to a boundary between two losses less homogeneous media with different refractive indices, a part of the wave is reflected back to the incident medium and the rest is transmitted on to the second media". This phenomenon is known as:

None of these

Fresnel reflection

Fresnel refraction

Snell's law

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YOUR ANSWER : ?

Which one of the following frequency regions is a part of sun's radiation?

Infrared frequency region

Ultraviolet frequency region

All of these

Radio frequency region

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Which one of the following errors is produced by platform characteristics of the sensor?

Orbit drift

All of these

Altitude variation

Altitude

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Which one of the following statement is correct?

The rate of transfer of radiant energy is called flux and is expressed in watts

Radiant energy expressed in Joules, is the energy associated with electromagnetic radiation

The radiant energy which falls upon a surface is termed as irradiance

All of these

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Crop Acreage and Production Estimation (CAPE) was funded and taken up in 1983 by:

Russia

India

European Union

USA

TRUE ANSWER : ?
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Pick up the important characteristic of a target which facilitates its identification from the following:

Temporal variation

Spatial variation

Spectral variation

All of these

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

1, 2, 3

1, 3

1, 2

2, 3

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