Questions
A slit of size 0.15 cm is placed at 2.1 m from a screen. On illuminated it by a light of wavelength 5 10–5 cm. The width of central maxima will be
detailed solution
Correct option is C
Width of central maxima =2λDd =2×2.1×5×10−70.15×10−2=1.4×10−3m=1.4mmTalk to our academic expert!
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