In a two-slit experiment, the slit separation is 3.0 × 10-5 m. The interference pattern is created on a screen that is 2.0 m away from the slits. If the seventh bright fringe on the screen is a linear distance of 10.0 cm away from the central fringe, what is the wavelength of the light?

To solve the problem we will apply the concepts related to the two slit experiment which describes the slit separation by the angle of projection as a function of the order of the bright fringe by the wavelength, this can be mathematically described as,

Here,

d = Slit separation

= Wavelength

m = Order of bright fringe

At the same time the distance of the central spot is defined as,

Here,

= Wavelength

R = Distance from slit to screen

Using the latest equation and rearranging to find the wavelength, we have,

Therefore the wavelenght of the light is 214.2nm

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  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is