In young's double slit experiment, light of wavelength 6000 angstrom is used to get an interference pattern on a screen - Physics - Wave Optics

Question

In young's double slit experiment, light of wavelength 6000
angstrom is used to get an interference pattern on a screen The
fringe width changes by 1 5 mm when the screen is brought towards
the double slit by 50 cm find the distance between the two slits

Pintu B. · Accepted Answer

Dear Student ,
Here the given data is :
fringe width,β=1·5 mmD=50 cmd=?λ=6000 A0Therefore ,distance between two slits is ,d=λDβ=6000×10-8×500·15=0·02 cm
Regards

In young's double slit experiment, light of wavelength 6000 angstrom is used to get an interference pattern on a screen. The fringe width changes by 1.5 mm when the screen is brought towards the double slit by 50 cm. find the distance between the two slits.