CBSE Class 12-science Answered
two coherent sources are one millimetre apart from each other the screen is placed at a distance of 25 cm from the sources if the wavelength of light is 6000 what will be the fringe of width of the interference pattern
Asked by avisharma804402 | 15 Sep, 2019, 01:15: AM
Expert Answer
fringe width = λ D / d
where λ = 6000 A° , wavelength of light
D = 25 cm, distance of coherent sources from screen
d = 1 mm, distance between coherent sources
Hence fringe width β = ( 6000 × 10-10 × 25 × 10-2 ) / 10-3 = 150 × 10-6 m = 0.15 mm
Answered by Thiyagarajan K | 15 Sep, 2019, 10:12: AM
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