Elements Of Remote Sensing
Pick up the correct definition from the following with response to GIS.

Common boundary between two areas of a locality is known as adjacency
The geometric property which describes the linkage between line features is defined as connectivity
The area features which are wholly contained within another area feature, is known so containment
All of these

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Elements Of Remote Sensing
Which one of the following statement is correct?

All of these
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

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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);

Both (A) and (B)
The angle of refraction (θr) is given by sin θ₂ = (n₁/n₂) sin θi
Neither (A) nor (B)
The angle of incidence is equal to the angle of refraction

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