MCQOPTIONS
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MCQOPTIONS
| 1. |
The first diffraction minimum due to the single slit diffraction is seen at \[9=30{}^\circ \] for a light of wavelength 5000 A falling perpendicularly on the slit. The width of the slit is |
| A. | \[2.5\times {{10}^{-5}}cm\] |
| B. | \[1.25\times {{10}^{-5}}cm\] |
| C. | \[10\times {{10}^{-5}}cm\] |
| D. | \[5\times {{10}^{-5}}cm\] |
| Answer» D. \[5\times {{10}^{-5}}cm\] | |