Optics Question 232
Question: Light of wavelength falls normally on a narrow slit. A screen placed at a distance of 1 m from the slit and perpendicular to the direction of light. The first minima of the diffraction pattern is situated at 5 mm from the centre of central maximum. The width of the slit is
Options:
A) 0.1 mm
B) 1.0 mm
C) 0.5 mm
D) 0.2 mm
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Answer:
Correct Answer: A
Solution:
Position of nth minima