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 light wave is incident normally over a slit of width\[24\times {{10}

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.	Radio waves
D.	\[1500\,\,{AA}\]
Answer» B. \[5000\,\,{AA}\]

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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]

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