An oil slick (n oil = 1.4) on glass (ngl= 1.5) is reflecting concentric rings of colors. what is the difference in thickness between two concentric rings where

o= 600 nm (yellow) is beingreflected?

a. o

b. o/2ngl

c. o/noil

d. o/2noil

e. o/ngl

To solve this problem we will use the concepts related to constructive interference. This occurs when the maxima of two waves add together (the two waves are in phase), so that the amplitude of the resulting wave is equal to the sum of the individual amplitudes.

NOTE: For the special case I will take the variable formulated in the statement as the wavelength "O", under the international nomenclature "λ" (Lambda)

The ray 1 and 2 both reflect from denser medium. So both will be in phase and applying the physics concepto about constructive interference we have that

Where,

m = Integer which represent the number of repetition of the spectrum

At the same time we have that the relation between the first wavelength and the wavelength at oil medium is given as,

For yellow , there is constructive interference then,

As is equal to O and the order of the interference is m=1, then we have that

Therefore the correct answer is D.

cell differentiation  is how generic embryonic  cells  become specialized  cells. this occurs  through a process called gene expression. gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a  cell  functions.

explanation:

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.