LordKnows7846 LordKnows7846

29-08-2019
Physics

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A laser beam is incident on two slits with a separation of 0.195 mm, and a screen is placed 5.30 m from the slits. If the bright interference fringes on the screen are separated by 1.62 cm, what is the wavelength of the laser light

Respuesta :

04-09-2019

Answer:

λ = 596 nm.

Explanation:

Fringe width = λ D / d

λ is wave length , D is screen distance and d is slit separation.

Putting the values

1.62 x 10⁻² =( λ x 5.3 ) / .195 x 10⁻³

[tex]\lambda=\frac{1.62\times10^{-2}\times195\times10^{-6}}{5.3}[/tex]

λ = 596 nm.

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