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: Passive sensors Sensors Active sensors None of these Passive sensors Sensors Active sensors None of these ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing In the given figure the phase of Trough C is 3π/2 B crossing is π All of these Crest A is π/2 Trough C is 3π/2 B crossing is π All of these Crest A is π/2 ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Consider the following statements regarding the satellite imaging: 1. The satellite orbit is fixed in the inertial space 2. During successive across-track imaging, the earth rotates beneath the sensor 3. The satellite images a skewed areaWhich one of the following statements is/are correct? 1, 2, 3 1, 2 2, 3 1, 3 1, 2, 3 1, 2 2, 3 1, 3 ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Critical angle of electromagnetic radiation takes place if Angle of incidence is greater than the angle of refraction Angle of refraction is equal to 90° Angle of incidence is equal to 90° Angle of incidence is equal to angle of refraction Angle of incidence is greater than the angle of refraction Angle of refraction is equal to 90° Angle of incidence is equal to 90° Angle of incidence is equal to angle of refraction ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Geodimeter is based on: The visible light as carrier with frequency of the order of 5 × 1014 Hz High frequency radio waves Propagation of modulated light waves Propagation of infrared radiation The visible light as carrier with frequency of the order of 5 × 1014 Hz High frequency radio waves Propagation of modulated light waves Propagation of infrared radiation 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); Both (A) and (B) The angle of incidence is equal to the angle of refraction Neither (A) nor (B) The angle of refraction (θr) is given by sin θ₂ = (n₁/n₂) sin θi Both (A) and (B) The angle of incidence is equal to the angle of refraction Neither (A) nor (B) The angle of refraction (θr) is given by sin θ₂ = (n₁/n₂) sin θi ANSWER DOWNLOAD EXAMIANS APP
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