Elements Of Remote Sensing
The spectral region of the electromagnetic radiation which passes through the atmosphere without much attenuation is known as:

Ozone window
Black hole
Atmospheric window
Ozone hole

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

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

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