Question

Arrange in a sequence the following stages of remote sensing. A. Detection of the energy by the sensor converting into photographic image or electrical output, B. Interaction between energy and earth surface or self emission, C. Transmission of the emitted or reflected energy to the remote sensor, D. Origin of electromagnetic energy, E. Transmission of energy from the source to the earth surface and its interaction with atmosphere.

• A. B, C, A, D, E
• B. C, D, A, E, B
• C. D, E, B, C, A
• D. A, B, C, E, D

Hint:

Remote sensing sequence is energy source, atmospheric path, target interaction, energy received by sensor, and data output.

Answer 1

The Correct Option is C

Concept:
Remote sensing involves energy source, transmission, interaction with target, reflected energy reaching sensor, and detection.

Step 1: Origin of energy.
First, electromagnetic energy originates from a source such as the sun or a transmitter. \[ \text{First step}=D \]

Step 2: Transmission through atmosphere.
Energy travels from source to earth surface and interacts with the atmosphere. \[ \text{Second step}=E \]

Step 3: Interaction with surface.
Energy interacts with the earth surface or target. \[ \text{Third step}=B \]

Step 4: Energy reaches sensor.
The reflected or emitted energy is transmitted to the sensor. \[ \text{Fourth step}=C \]

Step 5: Detection by sensor.
Finally, the sensor detects energy and converts it into an image or electrical signal. \[ \text{Fifth step}=A \] Therefore: \[ D,E,B,C,A \] \[ \therefore \text{Correct Answer is (C)} \]