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Wave Optics question

2023 · 6 Apr · Shift 2 · Q73

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Wave Optics
2023 · 6 Apr · Shift 2 · Q73

Wave Optics question

2023 · 6 Apr · Shift 2 · Q73

JEE MainPhysicsWave OpticsNumerical+4 / −1

A beam of light consisting of two wavelengths

7000~\mathop A\limits^o

and

5500~\mathop A\limits^o

is used to obtain interference pattern in Young's double slit experiment. The distance between the slits is

2.5 \mathrm{~mm}

and the distance between the plane of slits and the screen is

150 \mathrm{~cm}

. The least distance from the central fringe, where the bright fringes due to both the wavelengths coincide, is

n \times 10^{-5} \mathrm{~m}

. The value of

n

is

\underline{\hspace{2cm}}

.

Numerical answer

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