Light of wavelength 630 nm falls on two slits and produces an interference pattern in which the third-order bright red fringe is 35 mm from the central fringe on a screen 2.8 m away. Part A What is the separation of the two slits?

The separation of the two slits is = 1.5 × m

Explanation:

Wave length = 630 nm = 0.63 mm

x = 35 mm

l = 2.8 m

Order of fringes (m) = 3

We know that the separation of the two slits is given by

Put all the values in above formula we get

d = 1.5 × m

Therefore the separation of the two slits is = 1.5 × m

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explanation:

in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.