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Question

After energy has been emitted by the target, the sensor collects and records the _____.

A
Sunrays
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B
Objects on Earth
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C
Electromagnetic radiation
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D
None of these
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Solution

The correct option is D Electromagnetic radiation
  • Once the energy makes its way to the target through the atmosphere, it interacts with the target depending on the properties of both the target and the radiation.
  • After the energy has been scattered by, or emitted from the target, we require a sensor (remote - not in contact with the target) to collect and record the electromagnetic radiation.

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