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In YDSE, when a glass plate of refractiv...

In YDSE, when a glass plate of refractive `1.5` of thickness `t` is placed in the path of one of the interfering beams of wavelength `lamda`, intensity at the position where central maximum occurred previously remain unchanged. If the minimum thicknes of the glass plate is `klamda`. Find the value of `k`........

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The correct Answer is:
2
`[2]`
`t(mu-1)=lamdaimpliest(1.5-1)=lamdaimpliest=2lamda`
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