Elements Of Remote Sensing The instruments which provide electromagnetic radiation of specified wave length or a band of wave lengths to illuminate the earth surface are called: Sensors None of these Active sensors Passive sensors Sensors None of these Active sensors Passive sensors ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Who coined the term, ‘Remote sensing’. Evelyn L. Pruitt, a geographer Gaspard Felix Tournachon, a French scientist None of these Wilbur Wright, an Italian scientist Evelyn L. Pruitt, a geographer Gaspard Felix Tournachon, a French scientist None of these Wilbur Wright, an Italian scientist ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Which one of the following factors does not affect the scale of the air photographs? Ground elevation None of these Flying height Focal length Ground elevation None of these Flying height Focal length ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Rayleigh's criteria for a rough surface is: (where letters carry their usual meanings). h < λ/8 cos θ h > λ/Δ cos θ h = λ/8 cos θ h > λ/8 cos θ h < λ/8 cos θ h > λ/Δ cos θ h = λ/8 cos θ h > λ/8 cos θ ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Electromagnetic spectrum contains: All of these Ultraviolet rays (wave length < 10⁻⁶ m) Gamma rays (wave length < 10⁻¹⁰ m) Infrared rays (wave length < 10⁻⁴ m) All of these Ultraviolet rays (wave length < 10⁻⁶ m) Gamma rays (wave length < 10⁻¹⁰ m) Infrared rays (wave length < 10⁻⁴ m) ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing A perfectly black body: All listed here Is a diffuse emitter Absorbs all the radiations of every wave lengths Emits power of every wave length All listed here Is a diffuse emitter Absorbs all the radiations of every wave lengths Emits power of every wave length ANSWER DOWNLOAD EXAMIANS APP