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In Fraunhofer diffraction due to a narrow width 0.1mm. The first maxima lies 15.8mm on either side of the central maxima on a screen kept at a distance of 2.5 m from the slit.Calculate the wavelength of the light used?

manikanta , 11 Years ago
Grade 12
anser 1 Answers
Sher Mohammad

Last Activity: 11 Years ago

using formula,
d_f = \frac {2 \lambda z}{W}
df= 15.8*2
z=2.5m
w=0.1mm
all quantities are known except, lambda , put values and calculate the wavelength.
sher mohammad
askiitians faculty
b.tech, iit delhi

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