Optics Question 168
Question: Angular width of central maxima in the Fraunhoffer diffraction pattern of a slit is measured. The slit is illuminated by light of wavelength . When the slit is illuminated by light of another wavelength, the angular width decreases by 30%. The wavelength of this light will be
Options:
A)
B)
C)
D)
Show Answer
Answer:
Correct Answer: B
Solution:
Angular width