(B) The distance of the $n^{th}$ bright fringe from the central maximum is given by the formula: $x_n = \frac{n D \lambda}{d}$ Given values: $n = 3$ $

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(B) The distance of the $n^{th}$ bright fringe from the central maximum is given by the formula: $x_n = \frac{n D \lambda}{d}$ Given values: $n = 3$ $D = 120 \, cm = 1.2 \, m$ $\lambda = 6500 \, \mathring A = 6500 \times 10^{-10} \, m$ $d = 2 \, mm = 2 \times 10^{-3} \, m$ Substituting these values into the formula: $x_3 = \frac{3 \times 1.2 \times 6500 \times 10^{-10}}{2 \times 10^{-3}}$ $x_3 = \frac{3 \times 1.2 \times 6.5 \times 10^{-7}}{2 \times 10^{-3}}$ $x_3 = 1.17 \times 10^{-3} \, m$ $x_3 = 1.17 \, mm$

Class 12 Physics Wave Optics Young's Double Slit Experiment (YDSE)

Medium

In a Young's double-slit experiment,the light beam consists of two wavelengths $6500 \, \mathring A$ and $5200 \, \mathring A$. The distance between the slits is $2 \, mm$ and the distance between the plane of the slits and the screen is $120 \, cm$. Find the distance of the third bright fringe from the central maximum for the wavelength $6500 \, \mathring A$ in $mm$.

A
$0.19$
B
$1.17$
C
$1.98$
D
$2.15$

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Class 12 Questions

Class 12

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Wave Optics

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Young's Double Slit Experiment (YDSE)

In $YDSE$,how many maxima can be obtained on the screen if the wavelength of light used is $200 \, nm$ and $d = 700 \, nm$?

Medium

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Imagine a Young's double-slit interference experiment performed with waves associated with fast-moving electrons produced from an electron gun. The distance between successive maxima (fringe width) will decrease if:

Medium

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Young's double-slit experiment is performed using microwaves of wavelength $\lambda = 3 \, cm$. The distance between the plane of the slits and the screen is $D = 100 \, cm$,and the distance between the slits is $d = 5 \, cm$. Find $(a)$ the number of maxima and $(b)$ their positions on the screen.

Difficult

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In Young’s double slit experiment,a minimum is obtained when the phase difference of superimposing waves is:

Easy

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In a double slit experiment shown in the figure,when light of wavelength $400 \ nm$ is used,a dark fringe is observed at $P$. If $D=0.2 \ m$,the minimum distance between the slits $S_1$ and $S_2$ is . . . . . . $mm$.

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Similar Questions

In $YDSE$,how many maxima can be obtained on the screen if the wavelength of light used is $200 \, nm$ and $d = 700 \, nm$?

Imagine a Young's double-slit interference experiment performed with waves associated with fast-moving electrons produced from an electron gun. The distance between successive maxima (fringe width) will decrease if:

Young's double-slit experiment is performed using microwaves of wavelength $\lambda = 3 \, cm$. The distance between the plane of the slits and the screen is $D = 100 \, cm$,and the distance between the slits is $d = 5 \, cm$. Find $(a)$ the number of maxima and $(b)$ their positions on the screen.

In Young’s double slit experiment,a minimum is obtained when the phase difference of superimposing waves is:

In a double slit experiment shown in the figure,when light of wavelength $400 \ nm$ is used,a dark fringe is observed at $P$. If $D=0.2 \ m$,the minimum distance between the slits $S_1$ and $S_2$ is . . . . . . $mm$.

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