Physics

posted by .

When looking straight down on a film of oil on water, you see the color red, How thick could the film be to cause this effect? How thick could it be at another place where you see violet?

  • Physics -

    I do not know the velocity of light (index of refraction, n) of this oil.
    However figure the thickness of oil for constructive interference between the light reflected off the oil and off the water underneath for a red light wavelength and a violet wavelength in the oil.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    I have a problem that I need help with. The diameter of the oil molecule has to be calculated and presented in scientific notation. The data in the questions tells me that drop of oil(volume 0.05cm ^3) is released from a dropper onto …
  2. chemistry

    addtional information: the diameter of the oil film on the water is 40cm^2 see my post.
  3. chem

    Ok... i have no idea how to do this problem.... if anybody can help, that would be very much appreciated ___________________________________________ 67.) Oil spreads on water to form a film about 100 nm thick. How many square kilometers …
  4. physics

    Would you see the same thin film interference pattern in a film of soap surrounded by air and a film of soap on glass?
  5. physics

    Would you see the same thin film interference pattern in a film of soap surrounded by air and a film of soap on glass?
  6. Chemistry

    In water conservation, chemists spread a thin film of certain inert material over the surface of water to cut down the rate of evaporation of water in reservoirs. Franklin found that 0.10 mL of oil could spread over the surface of …
  7. Physics

    In one section of the pool, there is a thin film of oil on the surface of the water. The thickness of the film is 1.0 X l0^-7 meter and the index of refraction of the oil is 1.5. The light source is now held in the air and illuminates …
  8. physics

    Suppose the thickness of an oil film on water is just the right thickness for canceling red light. What color will your eye see?
  9. Physics

    Suppose the thickness of an oil film on water is just the right thickness for canceling red light. What color will your eye see?
  10. Physics

    Suppose the thickness of an oil film on water is just the right thickness for canceling red light. What color will your eye see?

More Similar Questions