Question 1 )
A) In a Young's double slit experiment the separation of the
slits is 0.23 mm. The wavelength of the light is 509 nm. Determine
the angle at which the third dark fringe out from the centre
occurs. Give your answer as a positive value.
B) In a Young's double slit experiment the separation of
the slits is 0.28 mm. The distance to the screen is
1.16 m. The third bright fringe is a distance of 5.2 mm
from the central fringe. Determine the wavelenght of the light.