Elements Of Remote Sensing
Who coined the term, ‘Remote sensing’.

Gaspard Felix Tournachon, a French scientist
Evelyn L. Pruitt, a geographer
None of these
Wilbur Wright, an Italian scientist

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

All of these
Radiant energy expressed in Joules, is the energy associated with electromagnetic radiation
The radiant energy which falls upon a surface is termed as irradiance
The rate of transfer of radiant energy is called flux and is expressed in watts

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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);

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

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Elements Of Remote Sensing
‘A’ and ‘B’ are two towers of equal height diametrically opposite on either side of the nadir point, at 3 km and 5 km distances. Which one of the following statements is correct?

Height displacement of A and B will be towards each other
Height displacement of A will be less than that of B
Height displacement of A and B is equal
Height displacement of B will be less than that of A

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