[单选题]
A monochromatic beam of light is incident on 3k0pu9. l2pbu-4 e5rxhwkky6w s;mns a dr hl;er4 avs;/u5wbn+yumy52ouble slit arrangement where the slit separaysw2mlrruy a4ubhn/+55 ;;evtion is $9.0\times10^{−5}\,m$ and the slit-screen distance is 1.0m. The graph below shows the relative intensity of the light reaching the screen with respect to the distance from the central point of the pattern.
What is the wavelength of the light?
A. $9.0\times10^{−7}\,m$
B. $3.0\times10^{−7}\,m$
C. $4.5\times10^{−5}\,m$
D. $4.5\times10^{−7}\,m$
