Answer:
As slit separation ([tex]d[/tex]) is increased, angle of first diffraction minimum will remains same.
As slit separation ([tex]d[/tex]) is increased, angle to the first interference maximum is decrease
Explanation:
Given:
From the formula of interference and diffraction,
⇒ For diffraction,
[tex]a \sin \theta = m \lambda[/tex]
Where [tex]a =[/tex] width of slit, [tex]m = 1,2,3 ....[/tex]
[tex]\sin \theta = \frac{m \lambda}{a}[/tex]
⇒ For interference,
[tex]d \sin \theta = n \lambda[/tex]
Where [tex]d =[/tex] distance between two slit, [tex]n = 0,1,2,3 ......[/tex]
[tex]\sin \theta = \frac{n \lambda}{d}[/tex]
As slit separation ([tex]d[/tex]) is increased, angle of first diffraction minimum will remains same.
As slit separation ([tex]d[/tex]) is increased, angle to the first interference maximum is decrease
