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 ?r are the refractive index of prism for violet and red colours respectively.
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 ?r are the refractive index of prism for violet and red colours respectively.
Answered by | 30th Mar, 2013, 10:58: AM
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