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| 1. |
Assume standard notations used for dispersion and deviation is a prise, in the following formulae: (a) `del=del_(gamma)` (b) `del=(n_(gamma)-1)A` ( c) `theta=del_(v)-del_(R)` (d) `theta=(n_(V)-n_(R))A` State which option(s) is / are correct.A. a and b are equivalent for a prism of small angle A, irrespective of IB. The ratios of `theta//del` given by, using c and a, and using b and d, are same for a prism with small angle A, irrespective of IC. b and d represent the most basic definitions of `theta` and `del` for a prism with small angle A, irrespective of ID. a and c represent the most basic definitions of `theta` and `del` for a prism with small angle A, irrespective of : |
| Answer» Correct Answer - D | |