A thin mica sheet of thickness $2 imes 10^{- 6}m$ and refractive index $(\mu = 1.5)$ is introduced in the path of the first wave. The wavelength of the wave used is $5000\ \mathring{\mathrm{A}}$. The central bright maximum will shift

Question

A thin mica sheet of thickness $2 	imes 10^{- 6}m$ and refractive index $(\mu = 1.5)$ is introduced in the path of the first wave. The wavelength of the wave used is $5000\ \mathring{\mathrm{A}}$. The central bright maximum will shift

Dr. Abubacker · Accepted Answer

(a) Shift $= \frac{\beta}{\lambda}(\mu - 1)t = \frac{\beta}{(5000 	imes 10^{- 10})} 	imes (1.5 - 1) 	imes 2 	imes 10^{- 6}$
$= 2\beta\ i.e.,2$ fringes upwards

Q. A thin mica sheet of thickness $2 \times 10^{- 6}m$ and refractive index $(\mu = 1.5)$ is introduced in the path of the first wave. The wavelength of the wave used is $5000\ \mathring{\mathrm{A}}$. The central bright maximum will shift

Explanation

Reviewed by Dr. Abubacker

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