Elements of Remote Sensing

Q.

Pick up the correct statement from the following:

A. The wave length of gamma rays is `10^(-10) m`
B. The wave length of radio rays is `10^6 m`
C. The visible length occupies a small portion of the electromagntic spectrum extending roughly from` 0.4 mu m to 0.7mu m` wave length
D. All of these

Answer : Option D

Explanation :