Elements Of Remote Sensing
If electric permittivity and magnetic permeability of the medium are respectively ‘ε’ and ‘μ’, then the velocity (Cm) of the electromagnetic wave in the medium is given by:

Cm = 5/√εμ
Cm = 1/√8 μ
Cm = 1/εμ
None of these

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

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

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Elements Of Remote Sensing
Which one of the following statements is correct regarding the GPS satellites?

The satellite transmits two L band signals (L1 with 1575.42 MHz and L2 with 1276.6 MHz)
All of these
The inclination of axis satellite is 55°
The nominal altitude is about 20,200 km

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