283572 Angular width of the central maxima in the Fraunhoffer diffraction for \(\lambda=6000 \AA\) is \(\theta_0\). When the same slit is illuminated by another monochromatic light, the angular width decreases by \(30 \%\). The wavelength of this light is

283573 An unpolarized light is falling on a glass surface of refractive index 1.73 . If the reflected and refracted rays are perpendicular to each other, then the angle of incidence is

283575 A transparent medium shows relation between \(i\) and \(r\) as shown. If the speed of light in vacuum is \(c\), the Brewster angle for the medium is :

283576 In a stack of three polarizing sheets, the first and the third are crossed while the middle one has its axis at \(45^{\circ}\) to the axes of other two. The fraction of intensity of an incident unpolarized beam of light that is transmitted by the stack is

283572 Angular width of the central maxima in the Fraunhoffer diffraction for \(\lambda=6000 \AA\) is \(\theta_0\). When the same slit is illuminated by another monochromatic light, the angular width decreases by \(30 \%\). The wavelength of this light is

283573 An unpolarized light is falling on a glass surface of refractive index 1.73 . If the reflected and refracted rays are perpendicular to each other, then the angle of incidence is

283575 A transparent medium shows relation between \(i\) and \(r\) as shown. If the speed of light in vacuum is \(c\), the Brewster angle for the medium is :

283576 In a stack of three polarizing sheets, the first and the third are crossed while the middle one has its axis at \(45^{\circ}\) to the axes of other two. The fraction of intensity of an incident unpolarized beam of light that is transmitted by the stack is

283572 Angular width of the central maxima in the Fraunhoffer diffraction for \(\lambda=6000 \AA\) is \(\theta_0\). When the same slit is illuminated by another monochromatic light, the angular width decreases by \(30 \%\). The wavelength of this light is

283573 An unpolarized light is falling on a glass surface of refractive index 1.73 . If the reflected and refracted rays are perpendicular to each other, then the angle of incidence is

283575 A transparent medium shows relation between \(i\) and \(r\) as shown. If the speed of light in vacuum is \(c\), the Brewster angle for the medium is :

283576 In a stack of three polarizing sheets, the first and the third are crossed while the middle one has its axis at \(45^{\circ}\) to the axes of other two. The fraction of intensity of an incident unpolarized beam of light that is transmitted by the stack is

283572 Angular width of the central maxima in the Fraunhoffer diffraction for \(\lambda=6000 \AA\) is \(\theta_0\). When the same slit is illuminated by another monochromatic light, the angular width decreases by \(30 \%\). The wavelength of this light is

283573 An unpolarized light is falling on a glass surface of refractive index 1.73 . If the reflected and refracted rays are perpendicular to each other, then the angle of incidence is

283575 A transparent medium shows relation between \(i\) and \(r\) as shown. If the speed of light in vacuum is \(c\), the Brewster angle for the medium is :

283576 In a stack of three polarizing sheets, the first and the third are crossed while the middle one has its axis at \(45^{\circ}\) to the axes of other two. The fraction of intensity of an incident unpolarized beam of light that is transmitted by the stack is