Young’s Double Slit Experiment
PHXII10:WAVE OPTICS

368128 In Young's double slit experiment, the wavelength of red light is \(7800\mathop {{\rm{ }}A}\limits^{\;\;^\circ } \) and that of the blue light is \(5200\mathop {{\rm{ }}A}\limits^{\;\;^\circ } \). The value of \(n\) for which \(n^{\text {th }}\) bright band due to red light coincides with \((n+1)^{\text {th }}\) bright band due to blue light, is

1 1
2 2
3 3
4 4
PHXII10:WAVE OPTICS

368129 If the monochromatic source in Young's double slit experiment is replaced by white light, then

1 Interference pattern will disappear
2 There will be a central dark fringe surrounded by a few coloured fringes
3 There will be a central bright white fringe surrounded by a few coloured fringes
4 All bright fringes will be of equal width
PHXII10:WAVE OPTICS

368130 In Young’s double slit experiment, the seventh maximum with wavelength \({\lambda _1}\) is at a distance \({y_1}\) from central maxima and the same maximum with wavelength \({\lambda _2}\) is at distance \({y_2}\) . Then \({y_1}/{y_2}\) :-

1 \(\frac{{{\lambda _1}}}{{{\lambda _2}}}\)
2 \(\frac{{{\lambda _2}}}{{{\lambda _1}}}\)
3 \(\frac{{\lambda _1^2}}{{\lambda _2^2}}\)
4 \(\frac{{\lambda _2^2}}{{\lambda _1^2}}\)
PHXII10:WAVE OPTICS

368131 White light is used to illuminate two slits in Young's double slit experiment. The separation between the slits is \(b\) and the screen is at a distance \(d(>>b)\) from the slits. At a point on the screen directly in front of one of the slits, which wavelengths are missing?

1 \(\dfrac{b}{d}, \dfrac{b}{3 d}, \dfrac{b}{5 d}\)
2 \(\dfrac{b^{2}}{2 d}, \dfrac{b^{2}}{4 d}, \dfrac{b^{2}}{6 d}\)
3 \(\dfrac{b^{2}}{d}, \dfrac{b^{2}}{3 d}, \dfrac{b^{2}}{5 d}\)
4 \(\dfrac{b}{2 d}, \dfrac{b}{4 d}, \dfrac{b}{6 d}\)
PHXII10:WAVE OPTICS

368128 In Young's double slit experiment, the wavelength of red light is \(7800\mathop {{\rm{ }}A}\limits^{\;\;^\circ } \) and that of the blue light is \(5200\mathop {{\rm{ }}A}\limits^{\;\;^\circ } \). The value of \(n\) for which \(n^{\text {th }}\) bright band due to red light coincides with \((n+1)^{\text {th }}\) bright band due to blue light, is

1 1
2 2
3 3
4 4
PHXII10:WAVE OPTICS

368129 If the monochromatic source in Young's double slit experiment is replaced by white light, then

1 Interference pattern will disappear
2 There will be a central dark fringe surrounded by a few coloured fringes
3 There will be a central bright white fringe surrounded by a few coloured fringes
4 All bright fringes will be of equal width
PHXII10:WAVE OPTICS

368130 In Young’s double slit experiment, the seventh maximum with wavelength \({\lambda _1}\) is at a distance \({y_1}\) from central maxima and the same maximum with wavelength \({\lambda _2}\) is at distance \({y_2}\) . Then \({y_1}/{y_2}\) :-

1 \(\frac{{{\lambda _1}}}{{{\lambda _2}}}\)
2 \(\frac{{{\lambda _2}}}{{{\lambda _1}}}\)
3 \(\frac{{\lambda _1^2}}{{\lambda _2^2}}\)
4 \(\frac{{\lambda _2^2}}{{\lambda _1^2}}\)
PHXII10:WAVE OPTICS

368131 White light is used to illuminate two slits in Young's double slit experiment. The separation between the slits is \(b\) and the screen is at a distance \(d(>>b)\) from the slits. At a point on the screen directly in front of one of the slits, which wavelengths are missing?

1 \(\dfrac{b}{d}, \dfrac{b}{3 d}, \dfrac{b}{5 d}\)
2 \(\dfrac{b^{2}}{2 d}, \dfrac{b^{2}}{4 d}, \dfrac{b^{2}}{6 d}\)
3 \(\dfrac{b^{2}}{d}, \dfrac{b^{2}}{3 d}, \dfrac{b^{2}}{5 d}\)
4 \(\dfrac{b}{2 d}, \dfrac{b}{4 d}, \dfrac{b}{6 d}\)
PHXII10:WAVE OPTICS

368128 In Young's double slit experiment, the wavelength of red light is \(7800\mathop {{\rm{ }}A}\limits^{\;\;^\circ } \) and that of the blue light is \(5200\mathop {{\rm{ }}A}\limits^{\;\;^\circ } \). The value of \(n\) for which \(n^{\text {th }}\) bright band due to red light coincides with \((n+1)^{\text {th }}\) bright band due to blue light, is

1 1
2 2
3 3
4 4
PHXII10:WAVE OPTICS

368129 If the monochromatic source in Young's double slit experiment is replaced by white light, then

1 Interference pattern will disappear
2 There will be a central dark fringe surrounded by a few coloured fringes
3 There will be a central bright white fringe surrounded by a few coloured fringes
4 All bright fringes will be of equal width
PHXII10:WAVE OPTICS

368130 In Young’s double slit experiment, the seventh maximum with wavelength \({\lambda _1}\) is at a distance \({y_1}\) from central maxima and the same maximum with wavelength \({\lambda _2}\) is at distance \({y_2}\) . Then \({y_1}/{y_2}\) :-

1 \(\frac{{{\lambda _1}}}{{{\lambda _2}}}\)
2 \(\frac{{{\lambda _2}}}{{{\lambda _1}}}\)
3 \(\frac{{\lambda _1^2}}{{\lambda _2^2}}\)
4 \(\frac{{\lambda _2^2}}{{\lambda _1^2}}\)
PHXII10:WAVE OPTICS

368131 White light is used to illuminate two slits in Young's double slit experiment. The separation between the slits is \(b\) and the screen is at a distance \(d(>>b)\) from the slits. At a point on the screen directly in front of one of the slits, which wavelengths are missing?

1 \(\dfrac{b}{d}, \dfrac{b}{3 d}, \dfrac{b}{5 d}\)
2 \(\dfrac{b^{2}}{2 d}, \dfrac{b^{2}}{4 d}, \dfrac{b^{2}}{6 d}\)
3 \(\dfrac{b^{2}}{d}, \dfrac{b^{2}}{3 d}, \dfrac{b^{2}}{5 d}\)
4 \(\dfrac{b}{2 d}, \dfrac{b}{4 d}, \dfrac{b}{6 d}\)
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXII10:WAVE OPTICS

368128 In Young's double slit experiment, the wavelength of red light is \(7800\mathop {{\rm{ }}A}\limits^{\;\;^\circ } \) and that of the blue light is \(5200\mathop {{\rm{ }}A}\limits^{\;\;^\circ } \). The value of \(n\) for which \(n^{\text {th }}\) bright band due to red light coincides with \((n+1)^{\text {th }}\) bright band due to blue light, is

1 1
2 2
3 3
4 4
PHXII10:WAVE OPTICS

368129 If the monochromatic source in Young's double slit experiment is replaced by white light, then

1 Interference pattern will disappear
2 There will be a central dark fringe surrounded by a few coloured fringes
3 There will be a central bright white fringe surrounded by a few coloured fringes
4 All bright fringes will be of equal width
PHXII10:WAVE OPTICS

368130 In Young’s double slit experiment, the seventh maximum with wavelength \({\lambda _1}\) is at a distance \({y_1}\) from central maxima and the same maximum with wavelength \({\lambda _2}\) is at distance \({y_2}\) . Then \({y_1}/{y_2}\) :-

1 \(\frac{{{\lambda _1}}}{{{\lambda _2}}}\)
2 \(\frac{{{\lambda _2}}}{{{\lambda _1}}}\)
3 \(\frac{{\lambda _1^2}}{{\lambda _2^2}}\)
4 \(\frac{{\lambda _2^2}}{{\lambda _1^2}}\)
PHXII10:WAVE OPTICS

368131 White light is used to illuminate two slits in Young's double slit experiment. The separation between the slits is \(b\) and the screen is at a distance \(d(>>b)\) from the slits. At a point on the screen directly in front of one of the slits, which wavelengths are missing?

1 \(\dfrac{b}{d}, \dfrac{b}{3 d}, \dfrac{b}{5 d}\)
2 \(\dfrac{b^{2}}{2 d}, \dfrac{b^{2}}{4 d}, \dfrac{b^{2}}{6 d}\)
3 \(\dfrac{b^{2}}{d}, \dfrac{b^{2}}{3 d}, \dfrac{b^{2}}{5 d}\)
4 \(\dfrac{b}{2 d}, \dfrac{b}{4 d}, \dfrac{b}{6 d}\)