MCQOPTIONS
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MCQOPTIONS
| 1. |
Expression for refractivity is given by ___________ |
| A. | N=(n-1) 10<sup>6</sup> |
| B. | N=(n-1) 10<sup>-6</sup> |
| C. | N=1/(n-1) |
| D. | N= ( frac{1}{n-1} ) 10<sup>-6</sup> |
| Answer» B. N=(n-1) 10<sup>-6</sup> | |