Young’s Double Slit Experiment
PHXII10:WAVE OPTICS

368102 In a Young's experiment, the separation between the slits is \(0.10\;nm\), the wavelength of light used is \(600\;nm\) and the interference pattern is observed on a screen \(1.0\;m\) away. Find the separation between the successive bright fringes.

1 \(6.6\;mm\)
2 \(6.0\;mm\)
3 \(6\;m\)
4 \(6\;cm\)
PHXII10:WAVE OPTICS

368103 Two identical narrow slits \(S_{1}\) and \(S_{2}\) are illuminated by light of wavelength \(\lambda\) from a point source \(P\). An interference pattern is produced on the screen as shown in figure. The condition for destructive interference at \(Q\) is that ( \(n\) is an integer)
supporting img

1 \(\left(l_{1}-l_{2}\right)=(2 n+1) \lambda / 2\)
2 \(\left(l_{3}-l_{4}\right)=(2 n+1) \lambda / 2\)
3 \(\left(l_{1}+l_{2}\right)-\left(l_{2}+l_{4}\right)=n \lambda\)
4 \(\left(l_{1}+l_{3}\right)-\left(l_{2}+l_{4}\right)=(2 n+1) \lambda / 2\)
PHXII10:WAVE OPTICS

368104 In the Young’s double slit experiment, the interference pattern is found to have an intensity ratio between bright and dark fringes as 9. This implies that

1 The intensities at the screen due to two slits are 4 units and 1 unit respectively
2 The intensities at the screen due to two slits are 5 units and 4 units respectively
3 The amplitude ratio is 2
4 The amplitude ratio is 4
PHXII10:WAVE OPTICS

368105 The optical path difference between two identical light waves arriving at a point is \(31.5\,\lambda \) where ' \(\lambda\) ' is the wavelength of light used. The point is
[Two light sources are coherent]

1 neither bright nor dark
2 dark
3 bright
4 alternatively bright and dark
PHXII10:WAVE OPTICS

368106 Assertion :
Two coherent source always have constant phase relationship.
Reason :
Light from two coherent sources is reaching the screen. If the path difference at a point on the screen for yellow light is \(3 \lambda / 2\) then the fringe at that point will be bright.

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

368102 In a Young's experiment, the separation between the slits is \(0.10\;nm\), the wavelength of light used is \(600\;nm\) and the interference pattern is observed on a screen \(1.0\;m\) away. Find the separation between the successive bright fringes.

1 \(6.6\;mm\)
2 \(6.0\;mm\)
3 \(6\;m\)
4 \(6\;cm\)
PHXII10:WAVE OPTICS

368103 Two identical narrow slits \(S_{1}\) and \(S_{2}\) are illuminated by light of wavelength \(\lambda\) from a point source \(P\). An interference pattern is produced on the screen as shown in figure. The condition for destructive interference at \(Q\) is that ( \(n\) is an integer)
supporting img

1 \(\left(l_{1}-l_{2}\right)=(2 n+1) \lambda / 2\)
2 \(\left(l_{3}-l_{4}\right)=(2 n+1) \lambda / 2\)
3 \(\left(l_{1}+l_{2}\right)-\left(l_{2}+l_{4}\right)=n \lambda\)
4 \(\left(l_{1}+l_{3}\right)-\left(l_{2}+l_{4}\right)=(2 n+1) \lambda / 2\)
PHXII10:WAVE OPTICS

368104 In the Young’s double slit experiment, the interference pattern is found to have an intensity ratio between bright and dark fringes as 9. This implies that

1 The intensities at the screen due to two slits are 4 units and 1 unit respectively
2 The intensities at the screen due to two slits are 5 units and 4 units respectively
3 The amplitude ratio is 2
4 The amplitude ratio is 4
PHXII10:WAVE OPTICS

368105 The optical path difference between two identical light waves arriving at a point is \(31.5\,\lambda \) where ' \(\lambda\) ' is the wavelength of light used. The point is
[Two light sources are coherent]

1 neither bright nor dark
2 dark
3 bright
4 alternatively bright and dark
PHXII10:WAVE OPTICS

368106 Assertion :
Two coherent source always have constant phase relationship.
Reason :
Light from two coherent sources is reaching the screen. If the path difference at a point on the screen for yellow light is \(3 \lambda / 2\) then the fringe at that point will be bright.

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.
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXII10:WAVE OPTICS

368102 In a Young's experiment, the separation between the slits is \(0.10\;nm\), the wavelength of light used is \(600\;nm\) and the interference pattern is observed on a screen \(1.0\;m\) away. Find the separation between the successive bright fringes.

1 \(6.6\;mm\)
2 \(6.0\;mm\)
3 \(6\;m\)
4 \(6\;cm\)
PHXII10:WAVE OPTICS

368103 Two identical narrow slits \(S_{1}\) and \(S_{2}\) are illuminated by light of wavelength \(\lambda\) from a point source \(P\). An interference pattern is produced on the screen as shown in figure. The condition for destructive interference at \(Q\) is that ( \(n\) is an integer)
supporting img

1 \(\left(l_{1}-l_{2}\right)=(2 n+1) \lambda / 2\)
2 \(\left(l_{3}-l_{4}\right)=(2 n+1) \lambda / 2\)
3 \(\left(l_{1}+l_{2}\right)-\left(l_{2}+l_{4}\right)=n \lambda\)
4 \(\left(l_{1}+l_{3}\right)-\left(l_{2}+l_{4}\right)=(2 n+1) \lambda / 2\)
PHXII10:WAVE OPTICS

368104 In the Young’s double slit experiment, the interference pattern is found to have an intensity ratio between bright and dark fringes as 9. This implies that

1 The intensities at the screen due to two slits are 4 units and 1 unit respectively
2 The intensities at the screen due to two slits are 5 units and 4 units respectively
3 The amplitude ratio is 2
4 The amplitude ratio is 4
PHXII10:WAVE OPTICS

368105 The optical path difference between two identical light waves arriving at a point is \(31.5\,\lambda \) where ' \(\lambda\) ' is the wavelength of light used. The point is
[Two light sources are coherent]

1 neither bright nor dark
2 dark
3 bright
4 alternatively bright and dark
PHXII10:WAVE OPTICS

368106 Assertion :
Two coherent source always have constant phase relationship.
Reason :
Light from two coherent sources is reaching the screen. If the path difference at a point on the screen for yellow light is \(3 \lambda / 2\) then the fringe at that point will be bright.

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

368102 In a Young's experiment, the separation between the slits is \(0.10\;nm\), the wavelength of light used is \(600\;nm\) and the interference pattern is observed on a screen \(1.0\;m\) away. Find the separation between the successive bright fringes.

1 \(6.6\;mm\)
2 \(6.0\;mm\)
3 \(6\;m\)
4 \(6\;cm\)
PHXII10:WAVE OPTICS

368103 Two identical narrow slits \(S_{1}\) and \(S_{2}\) are illuminated by light of wavelength \(\lambda\) from a point source \(P\). An interference pattern is produced on the screen as shown in figure. The condition for destructive interference at \(Q\) is that ( \(n\) is an integer)
supporting img

1 \(\left(l_{1}-l_{2}\right)=(2 n+1) \lambda / 2\)
2 \(\left(l_{3}-l_{4}\right)=(2 n+1) \lambda / 2\)
3 \(\left(l_{1}+l_{2}\right)-\left(l_{2}+l_{4}\right)=n \lambda\)
4 \(\left(l_{1}+l_{3}\right)-\left(l_{2}+l_{4}\right)=(2 n+1) \lambda / 2\)
PHXII10:WAVE OPTICS

368104 In the Young’s double slit experiment, the interference pattern is found to have an intensity ratio between bright and dark fringes as 9. This implies that

1 The intensities at the screen due to two slits are 4 units and 1 unit respectively
2 The intensities at the screen due to two slits are 5 units and 4 units respectively
3 The amplitude ratio is 2
4 The amplitude ratio is 4
PHXII10:WAVE OPTICS

368105 The optical path difference between two identical light waves arriving at a point is \(31.5\,\lambda \) where ' \(\lambda\) ' is the wavelength of light used. The point is
[Two light sources are coherent]

1 neither bright nor dark
2 dark
3 bright
4 alternatively bright and dark
PHXII10:WAVE OPTICS

368106 Assertion :
Two coherent source always have constant phase relationship.
Reason :
Light from two coherent sources is reaching the screen. If the path difference at a point on the screen for yellow light is \(3 \lambda / 2\) then the fringe at that point will be bright.

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

368102 In a Young's experiment, the separation between the slits is \(0.10\;nm\), the wavelength of light used is \(600\;nm\) and the interference pattern is observed on a screen \(1.0\;m\) away. Find the separation between the successive bright fringes.

1 \(6.6\;mm\)
2 \(6.0\;mm\)
3 \(6\;m\)
4 \(6\;cm\)
PHXII10:WAVE OPTICS

368103 Two identical narrow slits \(S_{1}\) and \(S_{2}\) are illuminated by light of wavelength \(\lambda\) from a point source \(P\). An interference pattern is produced on the screen as shown in figure. The condition for destructive interference at \(Q\) is that ( \(n\) is an integer)
supporting img

1 \(\left(l_{1}-l_{2}\right)=(2 n+1) \lambda / 2\)
2 \(\left(l_{3}-l_{4}\right)=(2 n+1) \lambda / 2\)
3 \(\left(l_{1}+l_{2}\right)-\left(l_{2}+l_{4}\right)=n \lambda\)
4 \(\left(l_{1}+l_{3}\right)-\left(l_{2}+l_{4}\right)=(2 n+1) \lambda / 2\)
PHXII10:WAVE OPTICS

368104 In the Young’s double slit experiment, the interference pattern is found to have an intensity ratio between bright and dark fringes as 9. This implies that

1 The intensities at the screen due to two slits are 4 units and 1 unit respectively
2 The intensities at the screen due to two slits are 5 units and 4 units respectively
3 The amplitude ratio is 2
4 The amplitude ratio is 4
PHXII10:WAVE OPTICS

368105 The optical path difference between two identical light waves arriving at a point is \(31.5\,\lambda \) where ' \(\lambda\) ' is the wavelength of light used. The point is
[Two light sources are coherent]

1 neither bright nor dark
2 dark
3 bright
4 alternatively bright and dark
PHXII10:WAVE OPTICS

368106 Assertion :
Two coherent source always have constant phase relationship.
Reason :
Light from two coherent sources is reaching the screen. If the path difference at a point on the screen for yellow light is \(3 \lambda / 2\) then the fringe at that point will be bright.

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.