In a biprism experiment, a slit is illum...

In a biprism experiment, a slit is illuminated by a light of wavelength `4800`. The distance between the slit and biprism is and the distance between the biprism is `15cm` and the distance between the biprism and eyepiece is `85cm`. If the distance between virtual sources is `3mm`, determine the distance between `4th` bright band on one side and `4th` dark band on the other side of the central bright band.

`9424xx10^(-5)m`

`9424xx10^(-5)cm`

`9424xx10^(-5)m`

`9424xx10^(-5)km`

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