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/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 h > λ/Δ cos θ ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The reflectance from a surface is called specular reflection if it follows: Lambert Planktan All of these Snell’s law Lambert Planktan All of these Snell’s law ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The normal altitude of GPS satellite is about 16,200 km 24,400 km 36,100 km 20,200 km 16,200 km 24,400 km 36,100 km 20,200 km ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Repetitive observations of the same area at equal interval of time are useful to monitor the dynamic phenomena: Cloud evolution Snow cover All of these Vegetative cover Cloud evolution Snow cover All of these Vegetative cover ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The changes in the reflectivity/emissivity with time, is called: Spatial variation Temporal variation None of these Spectral variation Spatial variation Temporal variation None of these Spectral variation ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Which one of the following quantities forms the basis of radiometry? Radiant flux (φ) All of these Radiant intensity (I) Radiant energy (Q) Radiant flux (φ) All of these Radiant intensity (I) Radiant energy (Q) ANSWER DOWNLOAD EXAMIANS APP
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