There are two sources kept at distances 2 λ. A large screen is perpendicular to line joining the sources. Number of maximas on the screen in this case is (λ= wavelength of light).

Question

There are two sources kept at distances 2 λ. A large screen is perpendicular to line joining the sources. Number of maximas on the screen in this case is (λ= wavelength of light). (A) 1 (B) 3 (C) 5 (D) 7

Tardigrade Admin · Accepted Answer

for max. path diff Δ =n π: n=0,1,2, . ∴ as shown in figure, there are 5 positions where Δ x=n λ satisfied no. of maxima =5

Q. There are two sources kept at distances $2 λ$ . A large screen is perpendicular to line joining the sources. Number of maximas on the screen in this case is $(λ =$ wavelength of light).

1

3

5

7

for max. path diff $Δ = nπ : n = 0, 1, 2$ , .
$∴$ as shown in figure, there are 5 positions
where $Δ x = nλ$ satisfied
no. of maxima $= 5$

Q. There are two sources kept at distances 2λ. A large screen is perpendicular to line joining the sources. Number of maximas on the screen in this case is (λ= wavelength of light).

1

3

5

7

for max. path diff Δ=nπ:n=0,1,2, . ∴ as shown in figure, there are 5 positions where Δx=nλ satisfied no. of maxima =5

Q. There are two sources kept at distances $2 λ$ . A large screen is perpendicular to line joining the sources. Number of maximas on the screen in this case is $(λ =$ wavelength of light).

for max. path diff $Δ = nπ : n = 0, 1, 2$ , .
$∴$ as shown in figure, there are 5 positions
where $Δ x = nλ$ satisfied
no. of maxima $= 5$