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

Question

Young's double-slit experiment is carried out by using green, red and blue light using one colour at a time. The fringe widths recorded are β G , β R and β B respectively. Then, (A) β textG > β textB > β textR (B) β textB > β textG > β textR (C) β textR > β textB > β textG (D) β textR > β textG > β textB

Tardigrade Admin · Accepted Answer

We know that fringe width is given by β =(λ D/d) ∵ λ textR>λ textG>λ textB ∴ β textR>β textG>β textB

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

$β_{G} > β_{B} > β_{R}$

$β_{B} > β_{G} > β_{R}$

$β_{R} > β_{B} > β_{G}$

$β_{R} > β_{G} > β_{B}$

We know that fringe width is given by
$β = \frac{λ D}{d}$
$∵$ $λ_{R} > λ_{G} > λ_{B}$
$∴ β_{R} > β_{G} > β_{B}$

Q. Young's double-slit experiment is carried out by using green, red and blue light using one colour at a time. The fringe widths recorded are βG​ , βR​ and βB​ respectively. Then,

βG​>βB​>βR​

βB​>βG​>βR​

βR​>βB​>βG​

βR​>βG​>βB​