Young’s Double Slit Experiment
PHXII10:WAVE OPTICS

368124 In Young's double slit experiment 62 fringes are visible in the field of view with sodium light \(\left( {\lambda = 5893{\rm{ }}\mathop {{\rm{ }}A}\limits^{\;\;^\circ } } \right)\). If green light \(\left( {\lambda = 5461{\rm{ }}\mathop {{\rm{ }}A}\limits^{\;\;^\circ } } \right)\) is used then the number of visible fringes will be-

1 62
2 67
3 85
4 58
PHXII10:WAVE OPTICS

368125 In Young’s double slit experiment, the slits are \(2{\rm{ }}mm\) apart and are illuminated by photons of two wavelengths \({\lambda _1} = 12000\,\mathop A\limits^ \circ \) and \({\lambda _2} = 10000\,\mathop A\limits^ \circ \) . At what minimum distance from the common central bright fringe on the screen \(2{\rm{ }}m\) from the slit will a bright fringe from one interference pattern coincide with a bright fringe from the other?

1 \(4\,mm\)
2 \(6\,mm\)
3 \(1\,mm\)
4 \(1.2\,mm\)
PHXII10:WAVE OPTICS

368126 In Young’s double slit experiment, two wavelengths \({\lambda _1} = 780\) \(nm\) and \({\lambda _2} = 520\) \(nm\) are used to obtain interference fringes. If the \({n^{th}}\) bright band due to \({\lambda _1}\) coincides with \({(n + 1)^{th}}\) bright band due to \({\lambda _2}{\rm{ }}\) , then the value of \(n\) is

1 4
2 3
3 2
4 6
PHXII10:WAVE OPTICS

368127 If the 8th bright band due to light of wavelength \(\lambda_{1}\) coincides with 9th bright band from light of wavelength \(\lambda_{2}\) in Young's double slit experiment, then the possible wavelengths of visible light are

1 \(400\;nm\) and \(450\;nm\)
2 \(425\;\;nm\) and \(400\;\,nm\)
3 \(400\;\,nm\) and \(425\;\;nm\)
4 \(450\;\;nm\) and \(400\;\,nm\)
PHXII10:WAVE OPTICS

368124 In Young's double slit experiment 62 fringes are visible in the field of view with sodium light \(\left( {\lambda = 5893{\rm{ }}\mathop {{\rm{ }}A}\limits^{\;\;^\circ } } \right)\). If green light \(\left( {\lambda = 5461{\rm{ }}\mathop {{\rm{ }}A}\limits^{\;\;^\circ } } \right)\) is used then the number of visible fringes will be-

1 62
2 67
3 85
4 58
PHXII10:WAVE OPTICS

368125 In Young’s double slit experiment, the slits are \(2{\rm{ }}mm\) apart and are illuminated by photons of two wavelengths \({\lambda _1} = 12000\,\mathop A\limits^ \circ \) and \({\lambda _2} = 10000\,\mathop A\limits^ \circ \) . At what minimum distance from the common central bright fringe on the screen \(2{\rm{ }}m\) from the slit will a bright fringe from one interference pattern coincide with a bright fringe from the other?

1 \(4\,mm\)
2 \(6\,mm\)
3 \(1\,mm\)
4 \(1.2\,mm\)
PHXII10:WAVE OPTICS

368126 In Young’s double slit experiment, two wavelengths \({\lambda _1} = 780\) \(nm\) and \({\lambda _2} = 520\) \(nm\) are used to obtain interference fringes. If the \({n^{th}}\) bright band due to \({\lambda _1}\) coincides with \({(n + 1)^{th}}\) bright band due to \({\lambda _2}{\rm{ }}\) , then the value of \(n\) is

1 4
2 3
3 2
4 6
PHXII10:WAVE OPTICS

368127 If the 8th bright band due to light of wavelength \(\lambda_{1}\) coincides with 9th bright band from light of wavelength \(\lambda_{2}\) in Young's double slit experiment, then the possible wavelengths of visible light are

1 \(400\;nm\) and \(450\;nm\)
2 \(425\;\;nm\) and \(400\;\,nm\)
3 \(400\;\,nm\) and \(425\;\;nm\)
4 \(450\;\;nm\) and \(400\;\,nm\)
PHXII10:WAVE OPTICS

368124 In Young's double slit experiment 62 fringes are visible in the field of view with sodium light \(\left( {\lambda = 5893{\rm{ }}\mathop {{\rm{ }}A}\limits^{\;\;^\circ } } \right)\). If green light \(\left( {\lambda = 5461{\rm{ }}\mathop {{\rm{ }}A}\limits^{\;\;^\circ } } \right)\) is used then the number of visible fringes will be-

1 62
2 67
3 85
4 58
PHXII10:WAVE OPTICS

368125 In Young’s double slit experiment, the slits are \(2{\rm{ }}mm\) apart and are illuminated by photons of two wavelengths \({\lambda _1} = 12000\,\mathop A\limits^ \circ \) and \({\lambda _2} = 10000\,\mathop A\limits^ \circ \) . At what minimum distance from the common central bright fringe on the screen \(2{\rm{ }}m\) from the slit will a bright fringe from one interference pattern coincide with a bright fringe from the other?

1 \(4\,mm\)
2 \(6\,mm\)
3 \(1\,mm\)
4 \(1.2\,mm\)
PHXII10:WAVE OPTICS

368126 In Young’s double slit experiment, two wavelengths \({\lambda _1} = 780\) \(nm\) and \({\lambda _2} = 520\) \(nm\) are used to obtain interference fringes. If the \({n^{th}}\) bright band due to \({\lambda _1}\) coincides with \({(n + 1)^{th}}\) bright band due to \({\lambda _2}{\rm{ }}\) , then the value of \(n\) is

1 4
2 3
3 2
4 6
PHXII10:WAVE OPTICS

368127 If the 8th bright band due to light of wavelength \(\lambda_{1}\) coincides with 9th bright band from light of wavelength \(\lambda_{2}\) in Young's double slit experiment, then the possible wavelengths of visible light are

1 \(400\;nm\) and \(450\;nm\)
2 \(425\;\;nm\) and \(400\;\,nm\)
3 \(400\;\,nm\) and \(425\;\;nm\)
4 \(450\;\;nm\) and \(400\;\,nm\)
PHXII10:WAVE OPTICS

368124 In Young's double slit experiment 62 fringes are visible in the field of view with sodium light \(\left( {\lambda = 5893{\rm{ }}\mathop {{\rm{ }}A}\limits^{\;\;^\circ } } \right)\). If green light \(\left( {\lambda = 5461{\rm{ }}\mathop {{\rm{ }}A}\limits^{\;\;^\circ } } \right)\) is used then the number of visible fringes will be-

1 62
2 67
3 85
4 58
PHXII10:WAVE OPTICS

368125 In Young’s double slit experiment, the slits are \(2{\rm{ }}mm\) apart and are illuminated by photons of two wavelengths \({\lambda _1} = 12000\,\mathop A\limits^ \circ \) and \({\lambda _2} = 10000\,\mathop A\limits^ \circ \) . At what minimum distance from the common central bright fringe on the screen \(2{\rm{ }}m\) from the slit will a bright fringe from one interference pattern coincide with a bright fringe from the other?

1 \(4\,mm\)
2 \(6\,mm\)
3 \(1\,mm\)
4 \(1.2\,mm\)
PHXII10:WAVE OPTICS

368126 In Young’s double slit experiment, two wavelengths \({\lambda _1} = 780\) \(nm\) and \({\lambda _2} = 520\) \(nm\) are used to obtain interference fringes. If the \({n^{th}}\) bright band due to \({\lambda _1}\) coincides with \({(n + 1)^{th}}\) bright band due to \({\lambda _2}{\rm{ }}\) , then the value of \(n\) is

1 4
2 3
3 2
4 6
PHXII10:WAVE OPTICS

368127 If the 8th bright band due to light of wavelength \(\lambda_{1}\) coincides with 9th bright band from light of wavelength \(\lambda_{2}\) in Young's double slit experiment, then the possible wavelengths of visible light are

1 \(400\;nm\) and \(450\;nm\)
2 \(425\;\;nm\) and \(400\;\,nm\)
3 \(400\;\,nm\) and \(425\;\;nm\)
4 \(450\;\;nm\) and \(400\;\,nm\)