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Angular width of central maxima in the Fraunhoffter 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

a)

b)

c)

d)



Question ID - 150046 | SaraNextGen Top Answer

Angular width of central maxima in the Fraunhoffter 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

a)

b)

c)

d)

1 Answer
127 votes
Answer Key / Explanation : (b) -

(b)

Angular width

127 votes


127