On face of a glass `(mu = 1.50)` lens is coated with a thin film of magnesium fluoride `MgF_(2)(mu = 1.38)` to reduce reflection from the lens surface. Assuming the incident light to be perpendicular to the lens surface. The least coating thickness that eliminates the reflection at the centre of the visible spectrum `(lamda = 550 nm)` is about

A glass lens is coated on one side with a thin film of magnesium fluoride (MgF_(2)) to reduce reflection from the lens surface (Fig. 2.26). The Index of refraction of MgF_(2) is 1.38, that of the glass is 1.50. What is the least coating thickness that eliminates (via interference) the reflections at the middle of the visible specturm (lambda = 550nm) ? Assume that the light is approxmately perpendicular to the lens surface.

A glass lens is coated on one side with a thin film of magnesium fluoride (MgF_(2)) to reduce reflection from the lens surface (Fig. 2.26). The Index of refraction of MgF_(2) is 1.38, that of the glass is 1.50. What is the least coating thickness that eliminates (via interference) the reflections at the middle of the visible specturm (lambda = 550nm) ? Assume that the light is approxmately perpendicular to the lens surface.

In solar cells, a silicon solar cell (mu = 3.5) is coated with a thin film of silicon monoxide SiO (mu = 1.45) to minimize reflective losses from the surface. Determine the minimum thickness of SiO that produces the least reflection at a wavelength of 550nm, near the centre of the visible spectrum. Assume approximately normal incidence .

In solar cells, a silicon solar cell (mu = 3.5) is coated with a thin film of silicon monoxide SiO (mu = 1.45) to minimize reflective losses from the surface. Determine the minimum thickness of SiO that produces the least reflection at a wavelength of 550nm, near the centre of the visible spectrum. Assume approximately normal incidence .

In solar cells, a silicon solar cell (mu = 3.5) is coated with a thin film of silicon monoxide SiO (mu = 1.45) to minimize reflective losses from the surface. Determine the minimum thickness of SiO that produces the least reflection at a wavelength of 550nm, near the centre of the visible spectrum. Assume approximately normal incidence .

A lens ( mu=1.5 ) is coated with a thin film of refractive index 1.2 order to reduce the reflected form its surface at lambda=4800Å .Find the maximum thickness of the film which will minimized the intensity of the reflected light .(Assume near normal incidence)

To ensure almost 100% transmittivity, photographic lenses are often coated with a thin layer of dielectric material, like MgF_(2)(mu=1.38) . The minimum thickness of the film to be used so that at the centre of visible spectrum (lambda = 5500 Å) there is maximum transmission.

To ensure almost 100% transmittivity, photographic lenses are often coated with a thin layer of dielectric maerial, like MgF_(2)(mu=1.38) . The minimum thickness of the film to be used so that at the centre of visible spectrum (lambda = 5500 Å) there is maximum transmission.

To ensure almost 100% transmittivity, photographic lenses are often coated with a thin layer of dielectric material, like MgF_(2)(mu=1.38) . The minimum thickness of the film to be used so that at the centre of visible spectrum (lambda = 5500 Å) there is maximum transmission.