Question
Download Solution PDFHow many types of EDM instruments are there based on wavelength?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Electronic Distance Measurement (EDM):
This is a modem development in surveying where electromagnetic waves are utilized to measure distance. Depending on the wavelength, EDM instruments can be classified as:
- Microwave instruments.
- Visible light instruments.
- Infrared instruments.
Hence option (1) is correct.
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