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Civil Engineering - Elements of Remote Sensing - Discussion

Discussion Forum : Elements of Remote Sensing - Section 2 (Q.No. 27)
Elements of Remote Sensing
27.
Critical angle of electromagnetic radiation takes place if
angle of incidence is equal to angle of refraction
angle of incidence is greater than the angle of refraction
angle of incidence is equal to 90°
angle of refraction is equal to 90°
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