Two incoherent sources of light emitting light of intensity `I_(0)` and `3I_(0)` interfere in a medium. Calculate, the resultant intensity at any poin

Question

Two incoherent sources of light emitting light of intensity `I_(0)` and `3I_(0)` interfere in a medium. Calculate, the resultant intensity at any poin

Two incoherent sources of light emitting light of intensity `I_(0)` and `3I_(0)` interfere in a medium. Calculate, the resultant intensity at any point.

Monjur Alahi

6 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Since, the two sources are incoherent, hence we do not obtain any sustained interference pattern. We observe an average intensity
`I=I_(1)+2sqrt(I_(1)I_(2))cosphi`
Now, `cosphi=0` in one complete cycle.
`:.I=I_(1)+I_(2)` which is `4I_(0)`

6 views Answered 2023-02-05 15:29