Young’s Double Slit Experiment
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PHXII10:WAVE OPTICS

368002 Assertion :
In Young's experiment the fringe width is directly proportional to wavelength of the source used.
Reason :
When a thin transparent sheet is placed in front of both the slits of Young's experiment, the fringe width will increase.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII10:WAVE OPTICS

368003 The central fringe of the interference pattern produced by light of wavelength \(6000\mathop A\limits^ \circ \) is found to shift to the position of 4th bright fringe after a glass plate of refractive index 1.5 is introduced in front of one of slits in Young’s experiment. The thickness of the glass plate will be

1 \(4.8\,\mu m\)
2 \(8.23\,\mu m\)
3 \(14.98\,\mu m\)
4 \(3.78\,\mu m\)
PHXII10:WAVE OPTICS

368004 In the ideal double slit experiment, when a glass plate \((R.I = 1.5)\) of thickness \(t\) is introduced in the path of one of the interfering beams (wavelength \(\lambda \)), the intensity at the position where cenral maximum occurred previously remains unchanged. The minimum thickness \('t'\) of the glass plate is

1 \(2\,\lambda \)
2 \(\frac{{2\lambda }}{3}\)
3 \(\frac{\lambda }{3}\)
4 \(\lambda \,q\)
PHXII10:WAVE OPTICS

368005 In Young’s double slit experiment, a mica sheet of thickness \(t\) and refractive index \(\mu \) is introduced in the ray from the first source \({S_1}.\) By how much distance the fringe pattern will be displaced?

1 \(\frac{D}{d}\left( {\mu - 1} \right)\)
2 \(\frac{D}{d}\left( {\mu - 1} \right)t\)
3 \(\frac{d}{D}\left( {\mu - 1} \right)t\)
4 \(\frac{d}{{\left( {\mu - 1} \right)D}}\)
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PHXII10:WAVE OPTICS

368002 Assertion :
In Young's experiment the fringe width is directly proportional to wavelength of the source used.
Reason :
When a thin transparent sheet is placed in front of both the slits of Young's experiment, the fringe width will increase.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII10:WAVE OPTICS

368003 The central fringe of the interference pattern produced by light of wavelength \(6000\mathop A\limits^ \circ \) is found to shift to the position of 4th bright fringe after a glass plate of refractive index 1.5 is introduced in front of one of slits in Young’s experiment. The thickness of the glass plate will be

1 \(4.8\,\mu m\)
2 \(8.23\,\mu m\)
3 \(14.98\,\mu m\)
4 \(3.78\,\mu m\)
PHXII10:WAVE OPTICS

368004 In the ideal double slit experiment, when a glass plate \((R.I = 1.5)\) of thickness \(t\) is introduced in the path of one of the interfering beams (wavelength \(\lambda \)), the intensity at the position where cenral maximum occurred previously remains unchanged. The minimum thickness \('t'\) of the glass plate is

1 \(2\,\lambda \)
2 \(\frac{{2\lambda }}{3}\)
3 \(\frac{\lambda }{3}\)
4 \(\lambda \,q\)
PHXII10:WAVE OPTICS

368005 In Young’s double slit experiment, a mica sheet of thickness \(t\) and refractive index \(\mu \) is introduced in the ray from the first source \({S_1}.\) By how much distance the fringe pattern will be displaced?

1 \(\frac{D}{d}\left( {\mu - 1} \right)\)
2 \(\frac{D}{d}\left( {\mu - 1} \right)t\)
3 \(\frac{d}{D}\left( {\mu - 1} \right)t\)
4 \(\frac{d}{{\left( {\mu - 1} \right)D}}\)
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PHXII10:WAVE OPTICS

368002 Assertion :
In Young's experiment the fringe width is directly proportional to wavelength of the source used.
Reason :
When a thin transparent sheet is placed in front of both the slits of Young's experiment, the fringe width will increase.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII10:WAVE OPTICS

368003 The central fringe of the interference pattern produced by light of wavelength \(6000\mathop A\limits^ \circ \) is found to shift to the position of 4th bright fringe after a glass plate of refractive index 1.5 is introduced in front of one of slits in Young’s experiment. The thickness of the glass plate will be

1 \(4.8\,\mu m\)
2 \(8.23\,\mu m\)
3 \(14.98\,\mu m\)
4 \(3.78\,\mu m\)
PHXII10:WAVE OPTICS

368004 In the ideal double slit experiment, when a glass plate \((R.I = 1.5)\) of thickness \(t\) is introduced in the path of one of the interfering beams (wavelength \(\lambda \)), the intensity at the position where cenral maximum occurred previously remains unchanged. The minimum thickness \('t'\) of the glass plate is

1 \(2\,\lambda \)
2 \(\frac{{2\lambda }}{3}\)
3 \(\frac{\lambda }{3}\)
4 \(\lambda \,q\)
PHXII10:WAVE OPTICS

368005 In Young’s double slit experiment, a mica sheet of thickness \(t\) and refractive index \(\mu \) is introduced in the ray from the first source \({S_1}.\) By how much distance the fringe pattern will be displaced?

1 \(\frac{D}{d}\left( {\mu - 1} \right)\)
2 \(\frac{D}{d}\left( {\mu - 1} \right)t\)
3 \(\frac{d}{D}\left( {\mu - 1} \right)t\)
4 \(\frac{d}{{\left( {\mu - 1} \right)D}}\)
Join With Us for More Updates
PHXII10:WAVE OPTICS

368002 Assertion :
In Young's experiment the fringe width is directly proportional to wavelength of the source used.
Reason :
When a thin transparent sheet is placed in front of both the slits of Young's experiment, the fringe width will increase.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII10:WAVE OPTICS

368003 The central fringe of the interference pattern produced by light of wavelength \(6000\mathop A\limits^ \circ \) is found to shift to the position of 4th bright fringe after a glass plate of refractive index 1.5 is introduced in front of one of slits in Young’s experiment. The thickness of the glass plate will be

1 \(4.8\,\mu m\)
2 \(8.23\,\mu m\)
3 \(14.98\,\mu m\)
4 \(3.78\,\mu m\)
PHXII10:WAVE OPTICS

368004 In the ideal double slit experiment, when a glass plate \((R.I = 1.5)\) of thickness \(t\) is introduced in the path of one of the interfering beams (wavelength \(\lambda \)), the intensity at the position where cenral maximum occurred previously remains unchanged. The minimum thickness \('t'\) of the glass plate is

1 \(2\,\lambda \)
2 \(\frac{{2\lambda }}{3}\)
3 \(\frac{\lambda }{3}\)
4 \(\lambda \,q\)
PHXII10:WAVE OPTICS

368005 In Young’s double slit experiment, a mica sheet of thickness \(t\) and refractive index \(\mu \) is introduced in the ray from the first source \({S_1}.\) By how much distance the fringe pattern will be displaced?

1 \(\frac{D}{d}\left( {\mu - 1} \right)\)
2 \(\frac{D}{d}\left( {\mu - 1} \right)t\)
3 \(\frac{d}{D}\left( {\mu - 1} \right)t\)
4 \(\frac{d}{{\left( {\mu - 1} \right)D}}\)
For More Updates join with Us