Coherent Sources of Light and interference of Light Constructive, Distractive
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
WAVE OPTICS

283192 In Young's double slit experiment, one of the slits is wider than the other, so that the amplitude of light from one slit is double of that from the other slit. It \(I_m\) is the maximum intensity, what is the resultant intensity when they interfere at phase difference \(\phi\) ?

1 \(\frac{I_m}{9}\left(1-8 \cos ^2 \frac{\phi}{2}\right)\)
2 \(\frac{I_m}{9}\left(1+8 \cos ^2 \frac{\phi}{2}\right)\)
3 \(\frac{I_{\mathrm{m}}}{9}\left(1-8 \cos ^2 \phi\right)\)
4 \(\frac{I_{\mathrm{m}}}{9}\left(1-\sin ^2 \frac{\phi}{2}\right)\)
WAVE OPTICS

283193 In Young's double slit experiment, the path difference between two interfering waves at a point on screen is \(\mathbf{1 3 . 5}\) times the wavelength. The point is

1 bright but not central bright
2 neither bright nor dark
3 central bright
4 dark
WAVE OPTICS

283194 In Young's double- slit experiment, the slits are separated by \(0.28 \mathrm{~mm}\) and the screen is placed \(1.4 \mathrm{~m}\) away. The distance of the fourth bright fringe from the central bright fringe is found to be \(1.2 \mathrm{~cm}\). The wavelength of the light used is

1 \(5000 \AA\)
2 \(5500 \AA\)
3 \(6000 \AA\)
4 \(6800 \AA\)
WAVE OPTICS

283195 In a young's double slit experiment, the separation between the two slits is \(0.9 \mathrm{~mm}\) and the fringes are observed one meter away. If it produces the second dark fringe at a distance of \(1 \mathrm{~mm}\) from the central fringe, the wavelength of the monochromatic source of light used is

1 \(450 \mathrm{~nm}\)
2 \(400 \mathrm{~nm}\)
3 \(500 \mathrm{~nm}\)
4 \(600 \mathrm{~nm}\)
WAVE OPTICS

283192 In Young's double slit experiment, one of the slits is wider than the other, so that the amplitude of light from one slit is double of that from the other slit. It \(I_m\) is the maximum intensity, what is the resultant intensity when they interfere at phase difference \(\phi\) ?

1 \(\frac{I_m}{9}\left(1-8 \cos ^2 \frac{\phi}{2}\right)\)
2 \(\frac{I_m}{9}\left(1+8 \cos ^2 \frac{\phi}{2}\right)\)
3 \(\frac{I_{\mathrm{m}}}{9}\left(1-8 \cos ^2 \phi\right)\)
4 \(\frac{I_{\mathrm{m}}}{9}\left(1-\sin ^2 \frac{\phi}{2}\right)\)
WAVE OPTICS

283193 In Young's double slit experiment, the path difference between two interfering waves at a point on screen is \(\mathbf{1 3 . 5}\) times the wavelength. The point is

1 bright but not central bright
2 neither bright nor dark
3 central bright
4 dark
WAVE OPTICS

283194 In Young's double- slit experiment, the slits are separated by \(0.28 \mathrm{~mm}\) and the screen is placed \(1.4 \mathrm{~m}\) away. The distance of the fourth bright fringe from the central bright fringe is found to be \(1.2 \mathrm{~cm}\). The wavelength of the light used is

1 \(5000 \AA\)
2 \(5500 \AA\)
3 \(6000 \AA\)
4 \(6800 \AA\)
WAVE OPTICS

283195 In a young's double slit experiment, the separation between the two slits is \(0.9 \mathrm{~mm}\) and the fringes are observed one meter away. If it produces the second dark fringe at a distance of \(1 \mathrm{~mm}\) from the central fringe, the wavelength of the monochromatic source of light used is

1 \(450 \mathrm{~nm}\)
2 \(400 \mathrm{~nm}\)
3 \(500 \mathrm{~nm}\)
4 \(600 \mathrm{~nm}\)
WAVE OPTICS

283192 In Young's double slit experiment, one of the slits is wider than the other, so that the amplitude of light from one slit is double of that from the other slit. It \(I_m\) is the maximum intensity, what is the resultant intensity when they interfere at phase difference \(\phi\) ?

1 \(\frac{I_m}{9}\left(1-8 \cos ^2 \frac{\phi}{2}\right)\)
2 \(\frac{I_m}{9}\left(1+8 \cos ^2 \frac{\phi}{2}\right)\)
3 \(\frac{I_{\mathrm{m}}}{9}\left(1-8 \cos ^2 \phi\right)\)
4 \(\frac{I_{\mathrm{m}}}{9}\left(1-\sin ^2 \frac{\phi}{2}\right)\)
WAVE OPTICS

283193 In Young's double slit experiment, the path difference between two interfering waves at a point on screen is \(\mathbf{1 3 . 5}\) times the wavelength. The point is

1 bright but not central bright
2 neither bright nor dark
3 central bright
4 dark
WAVE OPTICS

283194 In Young's double- slit experiment, the slits are separated by \(0.28 \mathrm{~mm}\) and the screen is placed \(1.4 \mathrm{~m}\) away. The distance of the fourth bright fringe from the central bright fringe is found to be \(1.2 \mathrm{~cm}\). The wavelength of the light used is

1 \(5000 \AA\)
2 \(5500 \AA\)
3 \(6000 \AA\)
4 \(6800 \AA\)
WAVE OPTICS

283195 In a young's double slit experiment, the separation between the two slits is \(0.9 \mathrm{~mm}\) and the fringes are observed one meter away. If it produces the second dark fringe at a distance of \(1 \mathrm{~mm}\) from the central fringe, the wavelength of the monochromatic source of light used is

1 \(450 \mathrm{~nm}\)
2 \(400 \mathrm{~nm}\)
3 \(500 \mathrm{~nm}\)
4 \(600 \mathrm{~nm}\)
WAVE OPTICS

283192 In Young's double slit experiment, one of the slits is wider than the other, so that the amplitude of light from one slit is double of that from the other slit. It \(I_m\) is the maximum intensity, what is the resultant intensity when they interfere at phase difference \(\phi\) ?

1 \(\frac{I_m}{9}\left(1-8 \cos ^2 \frac{\phi}{2}\right)\)
2 \(\frac{I_m}{9}\left(1+8 \cos ^2 \frac{\phi}{2}\right)\)
3 \(\frac{I_{\mathrm{m}}}{9}\left(1-8 \cos ^2 \phi\right)\)
4 \(\frac{I_{\mathrm{m}}}{9}\left(1-\sin ^2 \frac{\phi}{2}\right)\)
WAVE OPTICS

283193 In Young's double slit experiment, the path difference between two interfering waves at a point on screen is \(\mathbf{1 3 . 5}\) times the wavelength. The point is

1 bright but not central bright
2 neither bright nor dark
3 central bright
4 dark
WAVE OPTICS

283194 In Young's double- slit experiment, the slits are separated by \(0.28 \mathrm{~mm}\) and the screen is placed \(1.4 \mathrm{~m}\) away. The distance of the fourth bright fringe from the central bright fringe is found to be \(1.2 \mathrm{~cm}\). The wavelength of the light used is

1 \(5000 \AA\)
2 \(5500 \AA\)
3 \(6000 \AA\)
4 \(6800 \AA\)
WAVE OPTICS

283195 In a young's double slit experiment, the separation between the two slits is \(0.9 \mathrm{~mm}\) and the fringes are observed one meter away. If it produces the second dark fringe at a distance of \(1 \mathrm{~mm}\) from the central fringe, the wavelength of the monochromatic source of light used is

1 \(450 \mathrm{~nm}\)
2 \(400 \mathrm{~nm}\)
3 \(500 \mathrm{~nm}\)
4 \(600 \mathrm{~nm}\)