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 area
Which one of the following statements is/are correct?

1, 2, 3
1, 2
2, 3
1, 3

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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
Neither (A) nor (B)
Both (A) and (B)
The angle of incidence is equal to the angle of refraction

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Elements Of Remote Sensing
Which one the following is a correct statement?

The layers of the soil parallel to the earth surface are called horizons
The transitional layer between two adjoining horizons is called boundary
All of these
The vertical section of the soil extending into the parent material, is called profile

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