Question 449: Wave Optics

Question

Young's double slit experiment is carried out by using green, red and blue light, one colour at a time. The fringe widths recorded are $\beta$
G
, $\beta$
R
and $\beta$
B
, respectively. Then,

Accepted Answer

Fringe width, $\beta  = {{\lambda D} \over d}$
$	herefore$ $\beta  \propto \lambda $
As, ${\lambda _R} > {\lambda _G} > {\lambda _B}$ $	herefore$ ${\beta _R} > {\beta _G} > {\beta _B}$

Answer

$\beta$
G
> $\beta$
B
> $\beta$
R

Answer

$\beta$
B
> $\beta$
G
> $\beta$
R

Answer

$\beta$
R
> $\beta$
B
> $\beta$
G

Answer

$\beta$
R
> $\beta$
G
> $\beta$
B

Wave Optics

Young's double slit experiment is carried out by using green, red and blue light, one colour at a time. The fringe widths recorded are \beta G , \beta R and \beta B , respectively. Then,

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