Elements Of Remote Sensing A passive sensor uses: Sun as the source of energy None of these Its own source of energy Flash light as a source of energy Sun as the source of energy None of these Its own source of energy Flash light as a source of energy ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing "An Electromagnetic wave falls on to a boundary between two losses less homogeneous media with different refractive indices, a part of the wave is reflected back to the incident medium and the rest is transmitted on to the second media". This phenomenon is known as: Fresnel reflection Fresnel refraction None of these Snell's law Fresnel reflection Fresnel refraction None of these Snell's law 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 The angle of incidence is equal to the angle of refraction Both (A) and (B) Neither (A) nor (B) The angle of refraction (θr) is given by sin θ₂ = (n₁/n₂) sin θi The angle of incidence is equal to the angle of refraction Both (A) and (B) Neither (A) nor (B) ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Which one of the following statements regarding remote sensing is correct? Both (A) and (B) The emission of electromagnetic radiation from the target Neither (A) nor (B) The interaction of the electromagnetic radiation with the target Both (A) and (B) The emission of electromagnetic radiation from the target Neither (A) nor (B) The interaction of the electromagnetic radiation with the target ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Rayleigh's criteria for a rough surface is: (where letters carry their usual meanings). 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 h = λ/8 cos θ 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, 3 1, 2, 3 2, 3 1, 2 1, 3 1, 2, 3 2, 3 1, 2 ANSWER DOWNLOAD EXAMIANS APP
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