A thin film of oil (n=1.50) with varying thickness floats on water (n=1.33). The film is illuminated from above by white light. In air, the wavelength of yellow light is 580 nm.  The oil's thickness at point A is estimated to be 20% of that at point B. Do a calculation to prove that no reflected visible colors can be seen at point A.

A thin film of oil is on water. What is the thinnest that the oil can be to have constructive interference on reflection? The wavelength of the light in air is 480nm. Assume the beam starts in air. [n =1.00 ,n =1.50 , nwaer =1.33]

A thin film of oil (n 1.45) is floating on a water surface (n = 1.33) and is illuminated from above by monochromatic light (A = 590 nm). For what thickness of the oil film will the reflected light be bright? (in nm) = OA: 48.3 OB: 60.4 OC: 75.5 OD: 94.4 OE: 118.0 OF: 147.5 OG: 184.4 OH: 230.5

A thin film of oil (n=1.4) rests on the surface of a pool of water (n=1.33). Light with frequency 5.0x10^14 Hz traveling through air (n=1) is normally incident upon the oil, undergoing thin film interference. a) Will there be a relative phase shift? b) What is the wavelength of the light in the oil? c) What minimum thickness should the oil have if we wish to get constructive interference? d) What minimum thickness should the oil have if we wish to get destructive interference? Please write your answers in the space below and email your work. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). B I U S Paragraph Arial V 10pt くく AV I XQ 5 ते EE ...

You wish to make an anti-reflective coating from a material with index of refraction 1.09 to put on top of glass with an index of refraction 1.56. What is the minimum thickness of the coating that will produce destructive interference for light of wavelength 455.0 nm? Answer in units of nm.

A film of soapy water (n=1.33) on top of a plastic cutting board has a thickness of 278 nm. What is the wavelength of the most strongly reflected if it is illuminated perpendicular to its surface? Round your answer to 0 decimal places.

A sodium light, having wavelength 589.3 nm, is used to view a soap film to make it look black when directed perpendicular to the film. What is the minimum thickness of the soap film if the index of refraction of soap solution is 1.38?