Young’s Double Slit Experiment
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PHXII10:WAVE OPTICS

368098 In Young’s double slit interference pattern the fringe width

1 Is a universal constant, hence cannot be changed
2 Can be changed only by changing the wavelength of incident light
3 Can be changed either by changing the wavelength or by changing the separation between the two slits
4 Can be changed only by changing the separation between the two slits
PHXII10:WAVE OPTICS

368099 Two ideal slits \(S_{1}\) and \(S_{2}\) are at a distance \(d\) apart, and illuminated by light of wavelength \(\lambda\) passing through an ideal source slit \(S\) placed on the line through \(S_{2}\) as shown. The distance between the planes of slits and the source slit is \(D\). A screen is held at a distance \(D\) from the plane of the slits. The minimum value of \(d\) for which there is darkness at \(O\) is
supporting img

1 \(\sqrt{\lambda D}\)
2 \(\sqrt{\dfrac{\lambda D}{2}}\)
3 \(\sqrt {3\lambda D} \)
4 \(\sqrt {\frac{{3\lambda D}}{2}} \)
PHXII10:WAVE OPTICS

368100 The maximum intensity of fringes in Young’s experiment is \(I\). If one of the slit is closed, then the intensity at that place becomes

1 \(I\)
2 \(\frac{I}{4}\)
3 \(\frac{I}{2}\)
4 \(2I\)
PHXII10:WAVE OPTICS

368101 In\(YDSE\) of equal width slits, if intensity at the centre of screen is \({I_0},\) then intensity at a distance of \(\beta /4\) from the central maxima is (\(\beta \) is the fringe width):

1 \(\frac{{{I_0}}}{2}\)
2 \(\frac{{{I_0}}}{4}\)
3 \(\frac{{{I_0}}}{3}\)
4 \({I_0}\)
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PHXII10:WAVE OPTICS

368098 In Young’s double slit interference pattern the fringe width

1 Is a universal constant, hence cannot be changed
2 Can be changed only by changing the wavelength of incident light
3 Can be changed either by changing the wavelength or by changing the separation between the two slits
4 Can be changed only by changing the separation between the two slits
PHXII10:WAVE OPTICS

368099 Two ideal slits \(S_{1}\) and \(S_{2}\) are at a distance \(d\) apart, and illuminated by light of wavelength \(\lambda\) passing through an ideal source slit \(S\) placed on the line through \(S_{2}\) as shown. The distance between the planes of slits and the source slit is \(D\). A screen is held at a distance \(D\) from the plane of the slits. The minimum value of \(d\) for which there is darkness at \(O\) is
supporting img

1 \(\sqrt{\lambda D}\)
2 \(\sqrt{\dfrac{\lambda D}{2}}\)
3 \(\sqrt {3\lambda D} \)
4 \(\sqrt {\frac{{3\lambda D}}{2}} \)
PHXII10:WAVE OPTICS

368100 The maximum intensity of fringes in Young’s experiment is \(I\). If one of the slit is closed, then the intensity at that place becomes

1 \(I\)
2 \(\frac{I}{4}\)
3 \(\frac{I}{2}\)
4 \(2I\)
PHXII10:WAVE OPTICS

368101 In\(YDSE\) of equal width slits, if intensity at the centre of screen is \({I_0},\) then intensity at a distance of \(\beta /4\) from the central maxima is (\(\beta \) is the fringe width):

1 \(\frac{{{I_0}}}{2}\)
2 \(\frac{{{I_0}}}{4}\)
3 \(\frac{{{I_0}}}{3}\)
4 \({I_0}\)
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PHXII10:WAVE OPTICS

368098 In Young’s double slit interference pattern the fringe width

1 Is a universal constant, hence cannot be changed
2 Can be changed only by changing the wavelength of incident light
3 Can be changed either by changing the wavelength or by changing the separation between the two slits
4 Can be changed only by changing the separation between the two slits
PHXII10:WAVE OPTICS

368099 Two ideal slits \(S_{1}\) and \(S_{2}\) are at a distance \(d\) apart, and illuminated by light of wavelength \(\lambda\) passing through an ideal source slit \(S\) placed on the line through \(S_{2}\) as shown. The distance between the planes of slits and the source slit is \(D\). A screen is held at a distance \(D\) from the plane of the slits. The minimum value of \(d\) for which there is darkness at \(O\) is
supporting img

1 \(\sqrt{\lambda D}\)
2 \(\sqrt{\dfrac{\lambda D}{2}}\)
3 \(\sqrt {3\lambda D} \)
4 \(\sqrt {\frac{{3\lambda D}}{2}} \)
PHXII10:WAVE OPTICS

368100 The maximum intensity of fringes in Young’s experiment is \(I\). If one of the slit is closed, then the intensity at that place becomes

1 \(I\)
2 \(\frac{I}{4}\)
3 \(\frac{I}{2}\)
4 \(2I\)
PHXII10:WAVE OPTICS

368101 In\(YDSE\) of equal width slits, if intensity at the centre of screen is \({I_0},\) then intensity at a distance of \(\beta /4\) from the central maxima is (\(\beta \) is the fringe width):

1 \(\frac{{{I_0}}}{2}\)
2 \(\frac{{{I_0}}}{4}\)
3 \(\frac{{{I_0}}}{3}\)
4 \({I_0}\)
For More Updates join with Us
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXII10:WAVE OPTICS

368098 In Young’s double slit interference pattern the fringe width

1 Is a universal constant, hence cannot be changed
2 Can be changed only by changing the wavelength of incident light
3 Can be changed either by changing the wavelength or by changing the separation between the two slits
4 Can be changed only by changing the separation between the two slits
PHXII10:WAVE OPTICS

368099 Two ideal slits \(S_{1}\) and \(S_{2}\) are at a distance \(d\) apart, and illuminated by light of wavelength \(\lambda\) passing through an ideal source slit \(S\) placed on the line through \(S_{2}\) as shown. The distance between the planes of slits and the source slit is \(D\). A screen is held at a distance \(D\) from the plane of the slits. The minimum value of \(d\) for which there is darkness at \(O\) is
supporting img

1 \(\sqrt{\lambda D}\)
2 \(\sqrt{\dfrac{\lambda D}{2}}\)
3 \(\sqrt {3\lambda D} \)
4 \(\sqrt {\frac{{3\lambda D}}{2}} \)
PHXII10:WAVE OPTICS

368100 The maximum intensity of fringes in Young’s experiment is \(I\). If one of the slit is closed, then the intensity at that place becomes

1 \(I\)
2 \(\frac{I}{4}\)
3 \(\frac{I}{2}\)
4 \(2I\)
PHXII10:WAVE OPTICS

368101 In\(YDSE\) of equal width slits, if intensity at the centre of screen is \({I_0},\) then intensity at a distance of \(\beta /4\) from the central maxima is (\(\beta \) is the fringe width):

1 \(\frac{{{I_0}}}{2}\)
2 \(\frac{{{I_0}}}{4}\)
3 \(\frac{{{I_0}}}{3}\)
4 \({I_0}\)
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