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 None of these Sensors Active sensors Passive sensors None of these Sensors Active sensors ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Which one of the following parameters is accurate for DGPS? Positional accuracies ~ 2 - 5 m if rover is less than 2-5 km from the reference station Positional accuracies ~ 1 - 2 m if rover is less than 1-2 km from the reference station Positional accuracies ~ 5 - 10 m if rover is less than 25 km Positional accuracies ~ 5 - 10 m if rover is less than 5-10 km from reference station Positional accuracies ~ 2 - 5 m if rover is less than 2-5 km from the reference station Positional accuracies ~ 1 - 2 m if rover is less than 1-2 km from the reference station Positional accuracies ~ 5 - 10 m if rover is less than 25 km Positional accuracies ~ 5 - 10 m if rover is less than 5-10 km from reference station 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: All of these Snow cover Cloud evolution Vegetative cover All of these Snow cover Cloud evolution Vegetative cover ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Electromagnetic radiation: Produces a time varying magnetic field and vice versa Is capable to travel across space All of these Once generated, remains self-propagating Produces a time varying magnetic field and vice versa Is capable to travel across space All of these Once generated, remains self-propagating 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 refraction Snell's law Fresnel reflection None of these Fresnel refraction Snell's law Fresnel reflection None of these ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Which one of the following errors is produced by platform characteristics of the sensor? Altitude Orbit drift All of these Altitude variation Altitude Orbit drift All of these Altitude variation ANSWER DOWNLOAD EXAMIANS APP
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