If the source of light used in a Young's double slit experiment is changed from red to violet :

Question

If the source of light used in a Young's double slit experiment is changed from red to violet : (A) consecutive fringe lines will come closer (B) the central bright fringe will become a dark fringe (C) the fringes will become brighter (D) the intensity of minima will increase

Tardigrade Admin · Accepted Answer

β=(λ ⋅ D/d) λR >λV βR=(λR D/d) and βv=(λV D/d) βR >βv Fringe pattern will shrink.

Q. If the source of light used in a Young's double slit experiment is changed from red to violet :

consecutive fringe lines will come closer

the central bright fringe will become a dark fringe

the fringes will become brighter

the intensity of minima will increase

$β = \frac{λ \cdot D}{d}$
$λ_{R} > λ_{V}$
$β_{R} = \frac{λ _{R} D}{d}$
and $β_{v} = \frac{λ _{V} D}{d}$
$β_{R} > β_{v}$
Fringe pattern will shrink.

Q. If the source of light used in a Young's double slit experiment is changed from red to violet :

consecutive fringe lines will come closer

the central bright fringe will become a dark fringe

the fringes will become brighter

the intensity of minima will increase

β=dλ⋅D​ λR​>λV​ βR​=dλR​D​ and βv​=dλV​D​ βR​>βv​ Fringe pattern will shrink.

$β = \frac{λ \cdot D}{d}$
$λ_{R} > λ_{V}$
$β_{R} = \frac{λ _{R} D}{d}$
and $β_{v} = \frac{λ _{V} D}{d}$
$β_{R} > β_{v}$
Fringe pattern will shrink.