A double slit barrier with slit separation distance (d ) is a distance (L ) from a screen, with (L gg d ) When green laser light ( left( lambda mathrm g 532 mathrm nm ight) ) passes through the barrier, the bright fringes on the screen are a distance (y mathrm g ) apart When red laser light ( left(...

The distance between bright fringes on the screen y in a doubleslit interference pattern can be cal ...

A double-slit barrier with slit separation distance (d) is a distance (L) from a screen, with (L

Question:

A double-slit barrier with slit separation distance $d$ is a distance $L$ from a screen, with $L \gg d$. When green laser light $\left(\lambda_{\mathrm{g}}=532 \mathrm{~nm}\right)$ passes through the barrier, the bright fringes on the screen are a distance $y_{\mathrm{g}}$ apart. When red laser light $\left(\lambda_{\mathrm{r}}=650 \mathrm{~nm}\right)$ passes through the barrier, the bright fringes on the screen are a distance $y_{\mathrm{r}}$ apart. What is $y_{\mathrm{r}}$ expressed in terms of $y_{\mathrm{g}}$ ?

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