Question

If one shines a laser with wavelength λ = 650 nm through a single slit of width a = 0.04 mm, draw the diffraction pattern you might expect on a screen 10 m behind slit. How far apart are the minima ?

Answer 1

y = 162.5 mm

Step-by-step explanation:

given,

wavelength of the laser, λ = 650 nm

width of the slit, a = 0.04 mm

distance, D = 10 m

now, distance apart the minima is equal to

`y =(\lambda D)/(d)`

`y =(650 * 10^(-9)* 10)/(4 * 10^(-5))`

y = 0.1625 m

y = 162.5 mm

minima is 162.5 mm apart.