In a Young's double-slit experiment, the separation between slits is d and the screen is a distance D from the slits.D is much greater than d and $\lambda$ is the wavelength of the light.The number of bright fringes per unit length on the screen is:
A)"Dd/$\lambda$"
B)"D$\lambda$/d"
C)"D/d$\lambda$"
D)"$\lambda$/Dd"
E)"d/D$\lambda$"

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The Answer of In a Young's double-slit experiment, the separation between slits is d and the screen is a distance D from the slits.D is much greater than d and $\lambda$ is the wavelength of the light.The number of bright fringes per unit length on the screen is:
A)"Dd/$\lambda$"
B)"D$\lambda$/d"
C)"D/d$\lambda$"
D)"$\lambda$/Dd"
E)"d/D$\lambda$"

In a Young's Double-Slit Experiment, the Separation Between Slits Is λ\lambdaλ

In a Young's Double-Slit Experiment, the Separation Between Slits Is $\lambda$