1.

A light wave is incident normally over a slit of width\[24\times {{10}^{-5}}cm\]. The angular position of second dark fringe from the central maxima is 30o. What is the wavelength of light                                                 [RPET 1995]

A. \[6000\,\,{AA}\]               
B. \[5000\,\,{AA}\]
C. \[3000\,\,{AA}\]               
D. \[1500\,\,{AA}\]
Answer» B. \[5000\,\,{AA}\]


Discussion

No Comment Found

Related MCQs