Question

Calculate the angles at which the first dark and next bright bands are formed in Fraunhofer diffraction pattern of a slit of 0.25 mm width. The wavelength of light used is 5893 A.​

Answer 1

Answer:

Distance between the first 2 minimum on other side =

d

2λD

=

2×10

−1

×10

−3

2×5×10

3

×10

−10

×2

=10×

10

−4

10

−7

=10

−2

m