Civil Engineering - Elements of Remote Sensing - Discussion

Discussion Forum : Elements of Remote Sensing - Section 1 (Q.No. 20)
Pick up the correct statement from the following :
The distance between two successive crests or troughs of a wave, is called, the wave length
The wave length is measured in metres and a fraction of a metre
The wave length is generally denoted by λ
The length of the crest from the mid point, is called amplitude
All of these
Answer: Option
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