It looks correct to me.domyy said:Homework Statement
Hi
Light of 500nm wavelength is reflected from a thin film of air between two glass plates. The thickness of the film is 1000mn.
a) How much farther does the light reflected from bottom surface travels than the light reflected from the top of the film (assuming normal incidence)?
b) How many wavelength of light does this represent?
Homework Equations
λ ≈ 2d
The Attempt at a Solution
For a)
λ = 2(1000nm) = 2000nm
For b)
2000nm/500nm = 4
Is it correct?
The wavelength of light is the distance between two consecutive peaks or troughs of a wave. 500nm wavelength refers to the specific distance of light waves that measure 500 nanometers, or 500 billionths of a meter.
Light of 500nm wavelength is reflected when it hits a surface and bounces off in a different direction. This is due to the interaction between the light waves and the molecules of the reflecting surface.
The reflection of light of 500nm wavelength depends on the angle of incidence, or the angle at which the light hits the reflecting surface, as well as the properties of the surface, such as its smoothness and composition.
At 500nm wavelength, the human eye perceives light as green. This is because the human eye is most sensitive to light in the green portion of the visible spectrum, which ranges from approximately 495nm to 570nm.
The reflection of light of 500nm wavelength has many practical applications, such as in mirrors, which use smooth, reflective surfaces to create clear images. It is also used in fiber optics, which use total internal reflection of light to transmit signals for communication and data transfer.