Coherent Sources of Light and interference of Light Constructive, Distractive
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283176 In interference, the ratio of maximum intensity to the minimum intensity is 25 . The intensities of the sources are in the ratio

1 \(25: 1\)
2 \(5: 1\)
3 \(9: 4\)
4 \(625: 1\)
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283177 In a Young's double slit experiment, a thin sheet of refractive index 1.6 is used to cover one slit while a thin the sheet of refractive index 1.3 is used to cover the second slit. The thickness of both the sheets are same and the wavelength of light used is \(600 \mathrm{~nm}\). If the central point on the screen is now occupied by what had been the 10th bright fringe \((n=10)\), then the thickness of covering sheets is

1 \(50 \mu \mathrm{m}\)
2 \(8 \mu \mathrm{m}\)
3 \(20 \mu \mathrm{m}\)
4 \(40 \mu \mathrm{m}\)
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283178 In a Young's double slit experiment, \(m\) th order and \(n\)th order of bright fringes are formed at point \(P\) on a distant screen, if monochromatic source of wavelength \(400 \mathrm{~nm}\) and \(600 \mathrm{~nm}\) are used respectively. The minimum value of \(m\) and \(\mathbf{n}\) are respectively.

1 4,6
2 3,2
3 2,3
4 4,2
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283179 Light consisting of a plane waves of wavelength, \(\lambda_1=8 \times 10^{-5} \mathrm{~cm}\) and \(\lambda_2=6 \times 10^{-5}\) \(\mathrm{cm}\) generates an interference pattern in Young's double slit experiment. If \(\boldsymbol{n}_1\) denotes the \(\boldsymbol{n}_I\) th dark fringe due to light of wavelength \(\lambda_1\) which coincides with \(n_2\) th bright fringe due to light of wavelength \(\lambda_2\), then

1 \(n_1=3, n_2=1\)
2 \(n_1=4, n_2=5\)
3 \(n_1=1, n_2=2\)
4 \(n_1=3, n_2=2\)
WAVE OPTICS

283176 In interference, the ratio of maximum intensity to the minimum intensity is 25 . The intensities of the sources are in the ratio

1 \(25: 1\)
2 \(5: 1\)
3 \(9: 4\)
4 \(625: 1\)
WAVE OPTICS

283177 In a Young's double slit experiment, a thin sheet of refractive index 1.6 is used to cover one slit while a thin the sheet of refractive index 1.3 is used to cover the second slit. The thickness of both the sheets are same and the wavelength of light used is \(600 \mathrm{~nm}\). If the central point on the screen is now occupied by what had been the 10th bright fringe \((n=10)\), then the thickness of covering sheets is

1 \(50 \mu \mathrm{m}\)
2 \(8 \mu \mathrm{m}\)
3 \(20 \mu \mathrm{m}\)
4 \(40 \mu \mathrm{m}\)
WAVE OPTICS

283178 In a Young's double slit experiment, \(m\) th order and \(n\)th order of bright fringes are formed at point \(P\) on a distant screen, if monochromatic source of wavelength \(400 \mathrm{~nm}\) and \(600 \mathrm{~nm}\) are used respectively. The minimum value of \(m\) and \(\mathbf{n}\) are respectively.

1 4,6
2 3,2
3 2,3
4 4,2
WAVE OPTICS

283179 Light consisting of a plane waves of wavelength, \(\lambda_1=8 \times 10^{-5} \mathrm{~cm}\) and \(\lambda_2=6 \times 10^{-5}\) \(\mathrm{cm}\) generates an interference pattern in Young's double slit experiment. If \(\boldsymbol{n}_1\) denotes the \(\boldsymbol{n}_I\) th dark fringe due to light of wavelength \(\lambda_1\) which coincides with \(n_2\) th bright fringe due to light of wavelength \(\lambda_2\), then

1 \(n_1=3, n_2=1\)
2 \(n_1=4, n_2=5\)
3 \(n_1=1, n_2=2\)
4 \(n_1=3, n_2=2\)
WAVE OPTICS

283176 In interference, the ratio of maximum intensity to the minimum intensity is 25 . The intensities of the sources are in the ratio

1 \(25: 1\)
2 \(5: 1\)
3 \(9: 4\)
4 \(625: 1\)
WAVE OPTICS

283177 In a Young's double slit experiment, a thin sheet of refractive index 1.6 is used to cover one slit while a thin the sheet of refractive index 1.3 is used to cover the second slit. The thickness of both the sheets are same and the wavelength of light used is \(600 \mathrm{~nm}\). If the central point on the screen is now occupied by what had been the 10th bright fringe \((n=10)\), then the thickness of covering sheets is

1 \(50 \mu \mathrm{m}\)
2 \(8 \mu \mathrm{m}\)
3 \(20 \mu \mathrm{m}\)
4 \(40 \mu \mathrm{m}\)
WAVE OPTICS

283178 In a Young's double slit experiment, \(m\) th order and \(n\)th order of bright fringes are formed at point \(P\) on a distant screen, if monochromatic source of wavelength \(400 \mathrm{~nm}\) and \(600 \mathrm{~nm}\) are used respectively. The minimum value of \(m\) and \(\mathbf{n}\) are respectively.

1 4,6
2 3,2
3 2,3
4 4,2
WAVE OPTICS

283179 Light consisting of a plane waves of wavelength, \(\lambda_1=8 \times 10^{-5} \mathrm{~cm}\) and \(\lambda_2=6 \times 10^{-5}\) \(\mathrm{cm}\) generates an interference pattern in Young's double slit experiment. If \(\boldsymbol{n}_1\) denotes the \(\boldsymbol{n}_I\) th dark fringe due to light of wavelength \(\lambda_1\) which coincides with \(n_2\) th bright fringe due to light of wavelength \(\lambda_2\), then

1 \(n_1=3, n_2=1\)
2 \(n_1=4, n_2=5\)
3 \(n_1=1, n_2=2\)
4 \(n_1=3, n_2=2\)
WAVE OPTICS

283176 In interference, the ratio of maximum intensity to the minimum intensity is 25 . The intensities of the sources are in the ratio

1 \(25: 1\)
2 \(5: 1\)
3 \(9: 4\)
4 \(625: 1\)
WAVE OPTICS

283177 In a Young's double slit experiment, a thin sheet of refractive index 1.6 is used to cover one slit while a thin the sheet of refractive index 1.3 is used to cover the second slit. The thickness of both the sheets are same and the wavelength of light used is \(600 \mathrm{~nm}\). If the central point on the screen is now occupied by what had been the 10th bright fringe \((n=10)\), then the thickness of covering sheets is

1 \(50 \mu \mathrm{m}\)
2 \(8 \mu \mathrm{m}\)
3 \(20 \mu \mathrm{m}\)
4 \(40 \mu \mathrm{m}\)
WAVE OPTICS

283178 In a Young's double slit experiment, \(m\) th order and \(n\)th order of bright fringes are formed at point \(P\) on a distant screen, if monochromatic source of wavelength \(400 \mathrm{~nm}\) and \(600 \mathrm{~nm}\) are used respectively. The minimum value of \(m\) and \(\mathbf{n}\) are respectively.

1 4,6
2 3,2
3 2,3
4 4,2
WAVE OPTICS

283179 Light consisting of a plane waves of wavelength, \(\lambda_1=8 \times 10^{-5} \mathrm{~cm}\) and \(\lambda_2=6 \times 10^{-5}\) \(\mathrm{cm}\) generates an interference pattern in Young's double slit experiment. If \(\boldsymbol{n}_1\) denotes the \(\boldsymbol{n}_I\) th dark fringe due to light of wavelength \(\lambda_1\) which coincides with \(n_2\) th bright fringe due to light of wavelength \(\lambda_2\), then

1 \(n_1=3, n_2=1\)
2 \(n_1=4, n_2=5\)
3 \(n_1=1, n_2=2\)
4 \(n_1=3, n_2=2\)