WhAT IS THE DEFINITION OF DISPERSIVE POWER & HOW CAN WE CALCULATE IT WHEN DIFFERENT COLOURS ARE GIVEN ? PLS EXPLAIN .

Asked by  | 29th Mar, 2013, 09:00: PM

Expert Answer:

Dispersive power of the prism is given by the formula

? = (?v – ?r)/(? – 1)

here ? – 1 is the mean deviation. Also we can take ? with respect to yellow light as it is midway in the VIBGYOR series. ?v and ?are the refractive index of prism for violet and red colours respectively.

Answered by  | 30th Mar, 2013, 10:58: AM

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