283270 Two coherent sources whose intensity ratio is \(64: 1\) produce interference fringes. The ratio of intensities of maxima and minima is

283271 Two slits, separated by a distance of \(1 \mathrm{~mm}\) are illuminated with red light of wavelength
\(6.5 \times 10^{-7} \mathrm{~m}\). The interference fringes are observed on a screen placed \(1 \mathrm{~m}\) from the slits. The distance of the third dark fringe from the central fringe will be equal to

283272 The interference pattern is obtained with two coherent light sources of intensity ratio \(n\). In the interference pattern, the ratio \(\frac{I_{\max }-I_{\text {min }}}{I_{\max }+I_{\text {min }}}\) will be

283276 Two coherent monochromatic light sources are located at two vertices of an equilateral triangle. If the intensity due to each of the sources independently is \(1 \mathrm{Wm}^{-2}\) at the third vertex, the resultant intensity due to both the sources at the point (i.e., at the third vertex) is: (in \(\mathbf{W m}^{-2}\) )

283270 Two coherent sources whose intensity ratio is \(64: 1\) produce interference fringes. The ratio of intensities of maxima and minima is

283271 Two slits, separated by a distance of \(1 \mathrm{~mm}\) are illuminated with red light of wavelength
\(6.5 \times 10^{-7} \mathrm{~m}\). The interference fringes are observed on a screen placed \(1 \mathrm{~m}\) from the slits. The distance of the third dark fringe from the central fringe will be equal to

283272 The interference pattern is obtained with two coherent light sources of intensity ratio \(n\). In the interference pattern, the ratio \(\frac{I_{\max }-I_{\text {min }}}{I_{\max }+I_{\text {min }}}\) will be

283276 Two coherent monochromatic light sources are located at two vertices of an equilateral triangle. If the intensity due to each of the sources independently is \(1 \mathrm{Wm}^{-2}\) at the third vertex, the resultant intensity due to both the sources at the point (i.e., at the third vertex) is: (in \(\mathbf{W m}^{-2}\) )

283270 Two coherent sources whose intensity ratio is \(64: 1\) produce interference fringes. The ratio of intensities of maxima and minima is

283271 Two slits, separated by a distance of \(1 \mathrm{~mm}\) are illuminated with red light of wavelength
\(6.5 \times 10^{-7} \mathrm{~m}\). The interference fringes are observed on a screen placed \(1 \mathrm{~m}\) from the slits. The distance of the third dark fringe from the central fringe will be equal to

283272 The interference pattern is obtained with two coherent light sources of intensity ratio \(n\). In the interference pattern, the ratio \(\frac{I_{\max }-I_{\text {min }}}{I_{\max }+I_{\text {min }}}\) will be

283276 Two coherent monochromatic light sources are located at two vertices of an equilateral triangle. If the intensity due to each of the sources independently is \(1 \mathrm{Wm}^{-2}\) at the third vertex, the resultant intensity due to both the sources at the point (i.e., at the third vertex) is: (in \(\mathbf{W m}^{-2}\) )

283270 Two coherent sources whose intensity ratio is \(64: 1\) produce interference fringes. The ratio of intensities of maxima and minima is

283271 Two slits, separated by a distance of \(1 \mathrm{~mm}\) are illuminated with red light of wavelength
\(6.5 \times 10^{-7} \mathrm{~m}\). The interference fringes are observed on a screen placed \(1 \mathrm{~m}\) from the slits. The distance of the third dark fringe from the central fringe will be equal to

283272 The interference pattern is obtained with two coherent light sources of intensity ratio \(n\). In the interference pattern, the ratio \(\frac{I_{\max }-I_{\text {min }}}{I_{\max }+I_{\text {min }}}\) will be

283276 Two coherent monochromatic light sources are located at two vertices of an equilateral triangle. If the intensity due to each of the sources independently is \(1 \mathrm{Wm}^{-2}\) at the third vertex, the resultant intensity due to both the sources at the point (i.e., at the third vertex) is: (in \(\mathbf{W m}^{-2}\) )