Young’s Double Slit Experiment
« Previous Topic: Wave Nature of Light Last Topic in »
For More Updates join with Us
PHXII10:WAVE OPTICS

368107 Assertion :
In interference all the fringes are of same width.
Reason :
In interference fringe width is independent of position of the fringe.

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

368108 Two monochromatic light beams of intensity 16 and 9 units are interfering. The ratio of intensities of bright and dark parts of the resultant pattern is

1 \(\dfrac{16}{9}\)
2 \(\dfrac{49}{1}\)
3 \(\dfrac{7}{1}\)
4 \(\dfrac{4}{3}\)
JEE - 2014
PHXII10:WAVE OPTICS

368109 In a Young’s double slit experiment, let \(\beta \) be the fringe width, and let \({I_0}\) be the intensity at the central bright fringe. At a distance \(x\) from the central bright fringe, the intensity will be

1 \({I_0}\cos \left( {\frac{x}{\beta }} \right)\)
2 \({I_0}{\cos ^2}\left( {\frac{x}{\beta }} \right)\)
3 \(\left( {\frac{{{I_0}}}{4}} \right){\cos ^2}\left( {\frac{{\pi x}}{\beta }} \right)\)
4 \({I_0}{\cos ^2}\left( {\frac{{\pi x}}{\beta }} \right)\)
PHXII10:WAVE OPTICS

368110 In a Young's double slit experiment with light of wavelength \(\lambda\), the separation of slits is \(d\) and distance of screen is \(D\) such that \(D > d > > \lambda \). If the fringe width is \(\beta\), the distance from point of maximum intensity to the point where intensity falls to half of maximum intensity on either side is:

1 \(\dfrac{\beta}{6}\)
2 \(\dfrac{\beta}{3}\)
3 \(\dfrac{\beta}{4}\)
4 \(\dfrac{\beta}{2}\)
JEE - 2015
NEET DIGITAL LIBRARY
PHXII10:WAVE OPTICS

368107 Assertion :
In interference all the fringes are of same width.
Reason :
In interference fringe width is independent of position of the fringe.

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

368108 Two monochromatic light beams of intensity 16 and 9 units are interfering. The ratio of intensities of bright and dark parts of the resultant pattern is

1 \(\dfrac{16}{9}\)
2 \(\dfrac{49}{1}\)
3 \(\dfrac{7}{1}\)
4 \(\dfrac{4}{3}\)
JEE - 2014
PHXII10:WAVE OPTICS

368109 In a Young’s double slit experiment, let \(\beta \) be the fringe width, and let \({I_0}\) be the intensity at the central bright fringe. At a distance \(x\) from the central bright fringe, the intensity will be

1 \({I_0}\cos \left( {\frac{x}{\beta }} \right)\)
2 \({I_0}{\cos ^2}\left( {\frac{x}{\beta }} \right)\)
3 \(\left( {\frac{{{I_0}}}{4}} \right){\cos ^2}\left( {\frac{{\pi x}}{\beta }} \right)\)
4 \({I_0}{\cos ^2}\left( {\frac{{\pi x}}{\beta }} \right)\)
PHXII10:WAVE OPTICS

368110 In a Young's double slit experiment with light of wavelength \(\lambda\), the separation of slits is \(d\) and distance of screen is \(D\) such that \(D > d > > \lambda \). If the fringe width is \(\beta\), the distance from point of maximum intensity to the point where intensity falls to half of maximum intensity on either side is:

1 \(\dfrac{\beta}{6}\)
2 \(\dfrac{\beta}{3}\)
3 \(\dfrac{\beta}{4}\)
4 \(\dfrac{\beta}{2}\)
JEE - 2015
Join With Us for More Updates
PHXII10:WAVE OPTICS

368107 Assertion :
In interference all the fringes are of same width.
Reason :
In interference fringe width is independent of position of the fringe.

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

368108 Two monochromatic light beams of intensity 16 and 9 units are interfering. The ratio of intensities of bright and dark parts of the resultant pattern is

1 \(\dfrac{16}{9}\)
2 \(\dfrac{49}{1}\)
3 \(\dfrac{7}{1}\)
4 \(\dfrac{4}{3}\)
JEE - 2014
PHXII10:WAVE OPTICS

368109 In a Young’s double slit experiment, let \(\beta \) be the fringe width, and let \({I_0}\) be the intensity at the central bright fringe. At a distance \(x\) from the central bright fringe, the intensity will be

1 \({I_0}\cos \left( {\frac{x}{\beta }} \right)\)
2 \({I_0}{\cos ^2}\left( {\frac{x}{\beta }} \right)\)
3 \(\left( {\frac{{{I_0}}}{4}} \right){\cos ^2}\left( {\frac{{\pi x}}{\beta }} \right)\)
4 \({I_0}{\cos ^2}\left( {\frac{{\pi x}}{\beta }} \right)\)
PHXII10:WAVE OPTICS

368110 In a Young's double slit experiment with light of wavelength \(\lambda\), the separation of slits is \(d\) and distance of screen is \(D\) such that \(D > d > > \lambda \). If the fringe width is \(\beta\), the distance from point of maximum intensity to the point where intensity falls to half of maximum intensity on either side is:

1 \(\dfrac{\beta}{6}\)
2 \(\dfrac{\beta}{3}\)
3 \(\dfrac{\beta}{4}\)
4 \(\dfrac{\beta}{2}\)
JEE - 2015
For More Updates join with Us
PHXII10:WAVE OPTICS

368107 Assertion :
In interference all the fringes are of same width.
Reason :
In interference fringe width is independent of position of the fringe.

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

368108 Two monochromatic light beams of intensity 16 and 9 units are interfering. The ratio of intensities of bright and dark parts of the resultant pattern is

1 \(\dfrac{16}{9}\)
2 \(\dfrac{49}{1}\)
3 \(\dfrac{7}{1}\)
4 \(\dfrac{4}{3}\)
JEE - 2014
PHXII10:WAVE OPTICS

368109 In a Young’s double slit experiment, let \(\beta \) be the fringe width, and let \({I_0}\) be the intensity at the central bright fringe. At a distance \(x\) from the central bright fringe, the intensity will be

1 \({I_0}\cos \left( {\frac{x}{\beta }} \right)\)
2 \({I_0}{\cos ^2}\left( {\frac{x}{\beta }} \right)\)
3 \(\left( {\frac{{{I_0}}}{4}} \right){\cos ^2}\left( {\frac{{\pi x}}{\beta }} \right)\)
4 \({I_0}{\cos ^2}\left( {\frac{{\pi x}}{\beta }} \right)\)
PHXII10:WAVE OPTICS

368110 In a Young's double slit experiment with light of wavelength \(\lambda\), the separation of slits is \(d\) and distance of screen is \(D\) such that \(D > d > > \lambda \). If the fringe width is \(\beta\), the distance from point of maximum intensity to the point where intensity falls to half of maximum intensity on either side is:

1 \(\dfrac{\beta}{6}\)
2 \(\dfrac{\beta}{3}\)
3 \(\dfrac{\beta}{4}\)
4 \(\dfrac{\beta}{2}\)
JEE - 2015