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);

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

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

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

All of these
The layers of the soil parallel to the earth surface are called horizons
The vertical section of the soil extending into the parent material, is called profile
The transitional layer between two adjoining horizons is called boundary

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