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 rate of transfer of radiant energy is called flux and is expressed in watts The radiant energy which falls upon a surface is termed as irradiance All of these Radiant energy expressed in Joules, is the energy associated with electromagnetic radiation The rate of transfer of radiant energy is called flux and is expressed in watts The radiant energy which falls upon a surface is termed as irradiance ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Remote sensing techniques make use of the properties of ___________ emitted, reflected or diffracted by the sensed objects: Electric waves Wind waves Sound waves Electromagnetic waves Electric waves Wind waves Sound waves Electromagnetic waves ANSWER DOWNLOAD EXAMIANS APP
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 refraction (θr) is given by sin θ₂ = (n₁/n₂) sin θi Both (A) and (B) Neither (A) nor (B) 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 Both (A) and (B) Neither (A) nor (B) The angle of incidence is equal to the angle of refraction ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Which one of the following statement is incorrect regarding the electromagnetic radiation? None of these These are produced by the motion of electric charge The oscillation of charged particles sets up changing electric fields The changing electric fields induce the changing magnetic fields in the surrounding medium None of these These are produced by the motion of electric charge The oscillation of charged particles sets up changing electric fields The changing electric fields induce the changing magnetic fields in the surrounding medium ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing A perfectly black body: Absorbs all the radiations of every wave lengths Emits power of every wave length Is a diffuse emitter All listed here Absorbs all the radiations of every wave lengths Emits power of every wave length Is a diffuse emitter All listed here ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Formation of snow occurs if the cloud temperature is None of these At the freezing point Below the freezing point Just above the freezing point None of these At the freezing point Below the freezing point Just above the freezing point ANSWER DOWNLOAD EXAMIANS APP
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