Elements Of Remote Sensing
"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:

Snell's law
Fresnel reflection
Fresnel refraction
None of these

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Elements Of Remote Sensing
Earth observations from a satellite platform provide:

Synoptic view of a large area
All of these
Constant solar zenith angles and similar illumination conditions
Repetitive observations of the same area with intervals of a few minutes to a few weeks

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