Question

Arrange the following stages in Remote Sensing Data Acquisition in correct sequence
(A). Extraction of the information contents from the data products and conversion of information into various forms
(B). Propagation of reflected/emitted energy through the atmosphere and detection of the reflected/emitted energy by the sensor
(C). Source of energy and transmission of energy from the source to the surface of the earth
(D). Conversion of energy received into photographic/digital form of data
Choose the correct answer from the options given below:

• A. (C), (B), (D), (A).
• B. (C), (A), (B), (D).
• C. (C), (D), (A), (B).
• D. (D), (C), (B), (A).

Hint:

Think of the process like taking a picture: (C) Sun provides light. (B) Light bounces off your friend and enters the camera lens. (D) The camera sensor records the light as a digital image file. (A) You look at the image on your phone to see your friend's face.

Answer 1

The Correct Option is A

 

Step 1: Understanding the Concept: 
The question asks for the correct chronological sequence of events in the process of acquiring and using remote sensing data. 
 

Step 2: Detailed Explanation: 
The remote sensing process follows a logical flow from the energy source to the final information product: 
\[\begin{array}{rl} 1. & \text{(C) Source of energy and transmission...: The process must begin with a source of energy (like the sun or a radar pulse) that travels to and illuminates the Earth's surface. This is the starting point.} \\ 2. & \text{(B) Propagation of reflected/emitted energy...: After interacting with the surface, the energy is reflected or emitted back towards the sensor. It travels through the atmosphere and is then detected by the sensor on a satellite or aircraft.} \\ 3. & \text{(D) Conversion of energy received...: The sensor, having detected the energy, must record it. It converts the energy into a usable format, either a photographic image or, more commonly, digital data.} \\ 4. & \text{(A) Extraction of the information contents...: This is the final stage, known as data analysis or interpretation. The raw digital data is processed and analyzed to extract meaningful information (e.g., creating a land use map, monitoring crop health).} \\ \end{array}\]

The correct sequence of these stages is C \(\rightarrow\) B \(\rightarrow\) D \(\rightarrow\) A. 
 

Step 3: Final Answer: 
The correct sequence is (C), (B), (D), (A).