[ف.نووي]

Two slits separated by 0.10 mm are illuminated with green light ( = 540 nm). Calculate the distance (in cm) from the central bright-region to the fifth bright band if the screen is 1.0 m away.
a. 2.3 b. 2.5 c. 2.7
d. 2.1 e. 2.0
solution:

y_bright=λLm/d=(540×〖10〗^(-6) m×1m×5)/(0.1×〖10〗^(-3) m)=2.7