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light of 650 nm wavelength illuminates two slits that are 0.21 mm apart. (figure 1) shows the intensity pattern seen on a screen behind the slits.

Sagot :

The distance of the screen is 107.7 meter.

What is interference of light?

When two coherent light waves from separate sources collide, the energy distribution caused by the first wave is altered by the second. The term "interference of light" refers to this alteration in the distribution of light energy brought on by the superposition of two light waves.

Given that: wavelength of light: λ = 650 nm = 650×10⁻⁷ cm.

separation between two slits: d = 0.21 mm = 0.021 cm.

According to fig. separation between two bright fringe: x = 1/3 cm

Now, from x = λD/d we get:

separation  between the screen and the slits: D = xd/λ.

= (1/3× 0.021)/ 650×10⁻⁷ m

= 107.7 meter.

Learn more about interference here:

https://brainly.com/question/16098226

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