According to the Snell's law if an electromagnetic wave is incident in a medium (refractive index n₁) on another medium (refractive index m₂);

Elements Of Remote Sensing
According to the Snell's law if an electromagnetic wave is incident in a medium (refractive index n₁) on another medium (refractive index m₂);

Neither (A) nor (B)

The angle of refraction (θr) is given by sin θ₂ = (n₁/n₂) sin θi

The angle of incidence is equal to the angle of refraction

Both (A) and (B)

Neither (A) nor (B)

The angle of refraction (θr) is given by sin θ₂ = (n₁/n₂) sin θi

The angle of incidence is equal to the angle of refraction

Both (A) and (B)

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Elements Of Remote Sensing
The changes in the reflectivity/emissivity with time, is called:

Temporal variation

None of these

Spatial variation

Spectral variation

Temporal variation

None of these

Spatial variation

Spectral variation

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Elements Of Remote Sensing
DGPS is based on the concept that bias errors in the position of locations in a given local area, are same if their distances are within

50 km

75 km

25 km

100 km

50 km

75 km

25 km

100 km

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Elements Of Remote Sensing
The various stages occuring in GPS system are described below:
1. Generation of an output to the user
2. Detection of the GPS signals
3. Processing the data in the built-in-computer
4. Decoding the GPS signal.
The correct sequence of the stages is:

3, 1, 2, 4

2, 4, 3, 1

1, 2, 3, 4

2, 3, 4, 1

3, 1, 2, 4

2, 4, 3, 1

1, 2, 3, 4

2, 3, 4, 1

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Elements Of Remote Sensing
Repetitive observations of the same area at equal interval of time are useful to monitor the dynamic phenomena:

Cloud evolution

Snow cover

All of these

Vegetative cover

Cloud evolution

Snow cover

All of these

Vegetative cover

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Elements Of Remote Sensing
Spatial variation in horizontal and vertical directions is caused due to:

Chemical weathering of rocks

Physical weathering of rocks

All of these

Biological weathering of rocks

Chemical weathering of rocks

Physical weathering of rocks

All of these

Biological weathering of rocks

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Elements Of Remote Sensing

Elements Of Remote Sensing According to the Snell's law if an electromagnetic wave is incident in a medium (refractive index n₁) on another medium (refractive index m₂);

Elements Of Remote Sensing The changes in the reflectivity/emissivity with time, is called:

Elements Of Remote Sensing DGPS is based on the concept that bias errors in the position of locations in a given local area, are same if their distances are within

Elements Of Remote Sensing The various stages occuring in GPS system are described below:1. Generation of an output to the user2. Detection of the GPS signals3. Processing the data in the built-in-computer4. Decoding the GPS signal.The correct sequence of the stages is:

Elements Of Remote Sensing Repetitive observations of the same area at equal interval of time are useful to monitor the dynamic phenomena:

Elements Of Remote Sensing Spatial variation in horizontal and vertical directions is caused due to:

Elements Of Remote Sensing
According to the Snell's law if an electromagnetic wave is incident in a medium (refractive index n₁) on another medium (refractive index m₂);

Elements Of Remote Sensing
The changes in the reflectivity/emissivity with time, is called:

Elements Of Remote Sensing
DGPS is based on the concept that bias errors in the position of locations in a given local area, are same if their distances are within

Elements Of Remote Sensing
The various stages occuring in GPS system are described below:
1. Generation of an output to the user
2. Detection of the GPS signals
3. Processing the data in the built-in-computer
4. Decoding the GPS signal.
The correct sequence of the stages is:

Elements Of Remote Sensing
Repetitive observations of the same area at equal interval of time are useful to monitor the dynamic phenomena:

Elements Of Remote Sensing
Spatial variation in horizontal and vertical directions is caused due to: