The figure shows a Young’s double slit experimental setup. It is observed that when a thin transparent sheet of thickness t and refractive index \mu is put in front of one of the slits, the central maximum gets shifted by a distance equal to n fringe widths. If the wavelength of light used is \lambda,t will be: [9 Apr 2019 Shift 1]

Correct Answer is : nDλa(µ−1)

\frac{2 n D \\lambda}{a(\\mu-1)}

\frac{ n D \\lambda}{a(\\mu-1)}

JEE Main 9 Apr 2019 Paper 1 Solved Paper

Section: Physics

Question : 22 of 90

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The figure shows a Young’s double slit experimental setup. It is observed that when a thin transparent sheet of thickness t and refractive index µ is put in front of one of the slits, the central maximum gets shifted by a distance equal to n fringe widths. If the wavelength of light used is λ,t will be:

[9 Apr 2019 Shift 1]

2nDλ
a(µ−1)
2Dλ
a(µ−1)
nDλ
a(µ−1)
Dλ
a(µ−1)

Validate

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