Civil Engineering - Elements of Remote Sensing - Discussion

Discussion Forum : Elements of Remote Sensing - Section 3 (Q.No. 9)
Which one of the following statements is correct ?
The ratio of the permitivity of a medium and the free space, is called relative permitivity.
Dielectric constant is a pure number and has no dimensions.
The dielectric constant of pure water is 80.
Higher the dielectric constant of a medium, the poorer is its electric conductivity.
All of these
Answer: Option
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