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If the centre of $2^{nd}$ dark band is 2.0 cm from the middle of the central bright band, determine the $\lambda$.
written 6.3 years ago by | modified 21 months ago by |
A single slit of width 0.1 mm is illuminated normally with monochromatic light & its diffraction pattern is observed on screen placed 2 m away. If the centre of $2^{nd}$ dark band is 2.0 cm from the middle of the central bright band, determine the $\lambda$.
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