CBSE Class 12-science Answered
Plz answer q.no.16
Asked by vishakhachandan026 | 22 Feb, 2019, 01:32: PM
Expert Answer
minima occurs at , x = 
, n = 0, ±1, ±2.....
, n = 0, ±1, ±2.....where d is distance between slits and D is distance between slits and screen
for first minima n = 0, hence x = 
= D hence 2d = λ
= D hence 2d = λwe are given that d = 2D , hence 4D = λ or D = λ/4
Answered by Thiyagarajan K | 25 Feb, 2019, 10:10: AM
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