Does the spacing of the bright fringes in the twoslit arrangement in Figure 34.6 increase, decrease, or stay the same if we \((a)\) increase the spacing \(d\) of the slits, or \((b)\) increase the wavelength \(\lambda\) of the light incident on the arrangement?

Transcribed Image Text:

Figure 34.6 When the planar electromagnetic waves of a laser beam pass through a pair of narrow slits, what do we see on the screen? || laser beam double slit screen